DIE SETS


The Industry Standard, Conformed to Your Needs

LEMPCO customization services will go to virtually any length to satisfy your needs. Now, the
full range of answers to your requirements is at your command. It could be a simple modification
or something quite exotic. Whatever your need, LEMPCO will work closely with you to make
sure your specs are met.

The pride we have in our ability to perform (and to provide you with profitable production
performance) is stamped on every part we make. The LEMPCO stamp means satisfaction in
terms of quality, dependability and service since 1918. Other brands may appear the same; for
a system to truly perform, look for the LEMPCO name.


We pledge that all of our products – innovative or conventional – will be manufactured to the
same high quality level throughout the coming years.

Included in our full line offering are both inch and metric size die sets and die components that
are designed to numerous die standards including ISO, NAAMS, JIS and many large automotive
and appliance manufacturers’ standards. The complete product offering includes:


..........Ball bearing and plain bearing die sets
(including custom and catalog sets)

..........Ball bearing components
(including the exclusive Rotainer®)

..........Plain bearing components

..........Aluminum precision die sets

..........Forming Machine die sets

..........Lempcoshank® kits for die sets

..........Ground and machined plates

..........ISO and JIS Die Springs

..........Nitrogen gas springs

..........Formathane® Urethane springs, strippers,
sheets, bars, rods and die cover film

..........Accu-BendTM Rotary Benders

..........Lempcoloy® self-lubricating bushings

DIE SETS


PAGE NUMBER


General Information

2

Factors in Die Set Design

4

Catalog Ball Bearing and Plain Bearing Die Sets

Flanged Two Post 6
Rectangular Two Post 8
Rectangular Four Post 10

Custom All-Steel Die Sets

Large Two Post 12
Large Four Post 14

Custom Aluminum Die Sets 16

How to Order 17

Lempcoshank® 19

1



GENERAL INFORMATION


SIMPLY THE BEST, MOST COMPLETE
BALL BEARING COMPONENTS AVAILABLE


The stamper is interested in
uninterrupted high press
production. He wants held to a
minimum the amount of downtime
chargeable to regrinding
and die set maintenance and
repairs. He also wants scrap
held to a minimal level.

LEMPCO’s Ball Bearing Die
Sets offer him this opportunity
under a general heading of
“accuracy.” Because a LEMPCO
Ball Bearing Die Set is so accurate, there is less
die wear, less scrap, less chance of seizure. These
are profit factors.

Also, less time consumed fitting in the die
shop means cost reduction, which can result
in more favorable pricing. The die maker also
should know this because such a saving makes

PRECISION
ROTAINER®
PRECISION
RETAINER
him more competitive. Cost
records show that from 30% to
50% of the die maker’s time is
consumed at the bench-fitting,
mounting, aligning. The accuracy
of a LEMPCO Ball Bearing Die
Set reduces this time.

Then there’s the ease of
assembly and disassembly
offered by a LEMPCO Ball
Bearing Die Set. How many
times are the punch holder and

die holder assembled, disassembled, reassembled
before a new set of dies is ready for trying? Time
consumed, times the number of personnel involved,
times the labor cost, can represent important
money. If you can reduce this amount substantially,
as you can the LEMPCO ball bearing way, then
why not take advantage of your opportunity?


2



GENERAL INFORMATION


LEMPCO’s Ball Bearing Die Set has paced
the precision needs of production engineers
demanding finer parts tolerances, longer die life and
minimum down time for maintenance. LEMPCO’s
precision quality ball bearing die set consistently
has met these needs by matching improvements
in design, materials and manufacture with demand.

LEMPCO offers a Precision Ball Bearing Die
Set for even more accuracy in operation, even
smoother performance, more resistance to wear,
longest die life, even more customer convenience.
This results only from years of experience in the
designing and building of die sets solely to the
highest precision level available to industry.

PRECISION OFFERS MORE LOAD CAPACITY

The tiny ball bearing in a Rotainer® illustrates
the rigid quality control program under which
LEMPCO die sets are manufactured. It has been
tested for sphericity, hardness, elasticity and
dimensional tolerance. It is in a given set because
every bearing in the same Rotainer® has passed
all tests.

The Precision Rotainer® sleeve is an even
tougher alloy for additional wear resistance. A
LEMPCO die set of the Precision design provides
longer operating life and smoother performance
through increased load capacity and resistance to
adverse forces. The Precision Rotainer® sleeve is
a silver color with blue stripes for quick visual
identification.

BALL BEARING LINE INCLUDES A COMPLETE
ASSORTMENT OF GUIDE POSTS AND
BUSHINGS

Three kinds of guide posts for Ball Bearing
die sets are offered: the straight type for most die
set assemblies such as standard stock sets; the
removable for quick release of the post to expedite
disassembly; and the shoulder post for special die
set construction where it is considered desirable
to through bore both die holder and punch holder
to a single diameter.

Bushings for Ball Bearing Assemblies are
offered in four types: the press fit steel sleeve
with which stock sets are equipped as standard;
the steel demountable shoulder bushing: the
steel demountable boss bushing; and the steel
demountable shoulder guide post bushing.

All LEMPCO Ball Bearing Guide Posts, Bushings
and Rotainers are completely interchangeable
without any necessity whatsoever for select fitting
of any kind and, if mounted in accordance with the
boring and assembly instructions, do not require any
grinding, honing, lapping or any other modification
of any kind.

PLAIN BEARING USERS HAVE A FULL
CHOICE OF STOCK AND CUSTOM SETS AND
ACCESSORIES

In addition to the ball bearing line, LEMPCO
offers plain bearing design die sets. In this catalog,
you will find a complete dimensional description of
all ball bearing and plain bearing stock die sets.

LEMPCO offers three types of plain bearing
guide posts: straight type, flanged demountable
to expedite disassembly of the completed die for
repairs; and the shoulder guide post.

Plain bearing bushings are available to LEMPCO
customers. Your choice can be made from five
types of Precision demountable, bronze, bronze
plate and steel; five types of Precision press fit,
bronze, bronze plate and steel; five types of shoulder
guide post bushings, bronze, bronze plate and
steel; and three designs of demountable bosses
and boss bushings.

The components are available to you as
constituent parts or already assembled into complete
stock, special or special purpose die sets. LEMPCO’s
Die Set Catalog offers easy-to-find information,
whatever your immediate interest: stock or large
set, special purpose die set (steel or aluminum) or
forming machine types.

3



FACTORS IN DIE SET DESIGN



Normal clearance in a plain bearing die set can allow misalignment, as these sketches show. When working load is applied,
normal clearance becomes “redistributed”, ranging from zero to an excess. A slight lateral movement results which causes
the die to wear faster in one direction. At points of zero clearance, there is danger of lubrication breakdown with resulting

excessive wear and increasing misalignment.

Alignment of guide posts and bushings, and
the clearances provided in fitting them, contribute as
much as any other factors to the efficient operation
and economic life of a die. The ideal condition would
involve a press fit of guide post and bushing (negative
clearance), so that the resulting rigidity would assure
perfect parallelism between upper and lower die set
members under all working stresses.

The pre-loaded ball bearing guide post and
bushing offer the accuracy of a press fit, and the die
set possesses at the same time an ease of operation

which could otherwise be attained only by an unusually
large clearance between plain bearing guide post
and bushing.

Further, the ball bearing assembly presents no
lubrication problem such as exists when plain bearing
assemblies are fitted with clearances too small for the
maintenance of adequate lubrication films. Thus, there
is less dependence on the press operator for successful
die performance, since seizure due to the inability of
the lubricant to cover all surfaces is completely
eliminated.


Guide post diameter and punch holder weight determine the overhang that can be tolerated before development of undue
binding on plain bearing type posts and bushings. Overhang complicates punch and die alignment. A ball bearing die set
maintains perfect closing action without binding, even under excessive overhang conditions. No misalignment due to
clearance or overhang is found in a LEMPCO Ball Bearing Die Set. A ball bearing set offers free rolling movement vertically,
and, therefore, the punch holder can be raised and lowered manually, weight permitting.

4



FACTORS IN DIE SET DESIGN


When plain bearing assemblies are fitted to
closer tolerances, there is an increasing tendency
toward binding and galling; this difficulty affects the
accuracy with which the punch enters the die. A
slight cocking in any direction develops excessive die
wear in the direction of displacement. The result is
reduced die life overall and more frequent interruptions
for regrinding.

Clearance increases with wear in plain bearing
assemblies. In a long run involving frequent
resharpenings, the total time consumed in resetting
becomes a costly nonproductive part of the job. A
corollary evil stems from the higher rate of rejection
due to burrs, mispunches and distortions.

The ball bearing assembly helps solve the problem
of alignment which results from situations where
large overhangs are required. Under conditions of
severe and disproportionate overhang, the “rolling
press fit” of the ball bearing assembly enables the
upper and lower members of the die set to maintain
parallelism at the extremities. In the case of the plain
bearing die set, a temporary, although troublesome,
solution consists of increasing the diameters of
guide posts and bushings. Slowing down the press
production rate and exercising greater care to avoid
mis-hits also offer additional alleviation of this problem
inherent to plain bearing assemblies.

When small shut height reduces the thickness
of die shoes, flexing of these members may result

with consequent excessive wear on the dies. The
ball bearing assembly offsets to a marked degree
the lack of desirable rigidity in die shoes.

Ordinarily a pre-load (negative clearance) would
seem conducive to binding, but because of the rolling
action of the ball bearings, no such binding exists.
The initial pre-load is maintained throughout the
longest runs; careful tests have yielded many case
histories showing that even after 25 million or more
strokes a measurable pre-load still exists.

The success stampers and die makers have had
with LEMPCO’s ball bearing assemblies over the
course of many years, together with an increasing
demand for still greater parts accuracy, have resulted
now in introduction of a new and even higher standard
of ball bearing die set: LEMPCO’s Precision Grade.

Acceptance of the anti-friction design has
established LEMPCO as a prime source of supply
to the stamping industry. In an effort to be of even
greater service to the industry, LEMPCO makes
available a line of Precision Grade Plain Bearing
Die Sets. LEMPCO’s Plain Bearing Die Sets are
produced with the same quality of manufacture as its
Ball Bearing Die Sets. The accuracies of the LEMPCO
Plain Bearing Die Sets are at least equivalent to
those obtained from the best competitive materials
available. LEMPCO continues to recommend earnestly
its Ball Bearing Die Sets for universal application by
reason of the economic factors discussed here.

NEGATIVE CLEARANCE OR
PRESS FIT OF BALLS
BETWEEN PIN AND
BUSHING
BALL BEARING
NORMAL CLEARANCE
BETWEEN PIN AND
BUSHING
PLAIN BEARING
NORMAL CLEARANCE IN BUSHING ALLOWS
FREEDOM FOR PIN TO MOVE LATERALLY

There is no lateral movement in a LEMPCO Ball Bearing Assembly because of the “rolling press-fit” action. This is not the
case with the plain bearing assembly which requires clearance to function.

5


BALL & PLAIN BEARING DIE SETS

–Flanged Two Post


ALL STEEL

..........Easy to assemble

..........Guidance accuracy for holding tight tolerances

..........Less die wear, less scrap and less chance of
seizures during operation

..........Clamping flanges for security in the press
NOMINAL DIMENSIONS
Ball
Bearing
Model
Number
Plain
Bearing
Model
Number
Left
to
Right
A
Front
to
Back
B
(BB)
Die
Holder
J
Punch
Holder
K C D E F G M N O R S T
Min.
Shut
Height
L
4
reg.
4
(43/8)
13/8 11/4 47/8 31/4 27/16 11/2 51/2 61/4 315/16 1 6 71/2 63/8 51/4 BB-0404-C1 P-0404-C1
4
rev.
5
(53/8)
13/8 11/4 57/8 4 211/16 11/2 61/2 7 43/16 1 6 73/4 73/8 51/4 BB-0405-C1 P-0405-C1
5
reg.
4
(43/8)
13/8 11/4 47/8 4 23/16 11/2 51/2 7 311/16 1 63/4 81/4 63/8 51/4 BB-0504-C1 P-0504-C1
5
reg.
5
(53/8)
11/2 11/4 57/8 4 211/16 11/2 61/2 7 43/16 1 63/4 81/4 73/8 51/4 BB-0505-C1 P-0505-C1
61/2
reg.
4
(43/8)
11/2 11/4
47/8 51/8 21/8 11/2 51/2 81/8 35/8 1 85/8 101/2 63/8
51/4 BB-0604-C1 P-0604-C1
13/4 11/4 51/2 BB-0604-C4 –
61/2
reg.
6
(63/8)
11/2 11/4
67/8 51/8 33/16 11/2 71/2 81/8 411/16 1 85/8 101/2 83/8
51/4 BB-0606-C1 P-0606-C1
11/2 13/4 53/4 BB-0606-C2 –
2 13/4 6 BB-0606-C5 P-0606-C5
71/2
reg.
5
(53/8)
11/2 11/4
57/8 61/2 23/4 11/2 61/2 91/2 41/4 1 91/4 11 73/8
51/4 BB-0705-C1 P-0705-C1
11/2 13/4 53/4 – P-0705-C2
2 11/4 53/4 BB-0705-C4 –
2 13/4 6 – P-0705-C5
71/2
reg.
7
(73/8)
11/2 13/4
77/8 61/2 311/16 11/2 81/2 91/2 53/16 1 91/4 11 93/8
51/4 – P-0707-C1
2 11/4 53/4 – P-0707-C4
2 13/4 6 – P-0707-C5

NOTE: Unless otherwise noted, all dimensions listed are in inches.

6


BALL & PLAIN BEARING DIE SETS

–Flanged Two Post

PLAIN BEARINGBALL BEARING
NOMINAL DIMENSIONS
Ball
Bearing
Model
Number
Plain
Bearing
Model
Number
Left
to
Right
A
Front
to
Back
B
(BB)
Die
Holder
J
Punch
Holder
K C D E F G M N O R S T
Min.
Shut
Height
L
81/2
long
4
(43/8)
11/2 11/4
47/8 73/4 25/16 11/2 51/2 103/4 313/16 1 105/8 121/2 63/8
51/4 BB-0804-C1 –
2 11/4 53/4 BB-0804-C4 –
81/2
reg.
8
(83/8)
11/2 11/4
87/8 73/4 43/16 11/2 91/2 103/4 511/16 1 105/8 121/2 103/8
51/4 BB-0808-C1 –
11/2 13/4 53/4 – P-0808-C2
10

reg.
10
(103/8)
15/8 13/8
11 101/4 51/4 113/16 113/4 137/8 71/16 11/4 121/4 137/8 1213/16
6 BB-1010-C1
21/4 13/4 7 – P-1010-C5
15
long
7
(73/8)
11/2 11/2
81/8 14 43/8 21/16 9 181/8 67/16 11/2 171/4 191/2 103/16
61/2 – P-1507-C1
7 BB-1507-C4 –2 11/2

NOTE: Unless otherwise noted, all dimensions listed are in inches.

7


BALL & PLAIN BEARING DIE SETS


–Rectangular Two Post


BT-1210-P-0706
NOTE: Unless otherwise noted, all dimensions listed are in inches.

..........Most complete size range

..........Damaged top or bottom plates can be replaced
without ordering a complete new die set

..........Dies are easier to lay out
NOMINAL DIMENSIONS Ball
Bearing
Model Number
Plain
Bearing
Model NumberLR F FF FB P PP DH PH
POST
DIA. L
51/4 35/16 3 47/8 21/8 11/2
1 1 3/4
41/4 BT-0503-P-0404 –
11/4 1 43/4 BT-0503-P-0504 –
51/4 45/16 315/16 57/8 21/8 11/2
1 1 3/4
41/2 BT-0504-P-0404 LT-0504-P-0404
11/4 1 43/4 BT-0504-P-0504 LT-0504-P-0504
51/4 57/16 51/16 7 21/8 11/2 1 1 3/4 41/2 BT-0505-P-0404 LT-0505-P-0404
6 43/8 4 61/4 21/4 11/2
11/4 11/4 1
5 BT-0604-P-0505 LT-0604-P-0505
11/2 11/4 51/4 BT-0604-P-0605 LT-0604-P-0605
6 53/8 5 71/4 21/4 11/2
11/4 11/4 1
5 – LT-0605-P-0505
51/4 BT-0605-P-0605 LT-0605-P-060511/2 11/4
6 61/8 53/4 8 21/4 11/2
11/2 11/2 1
51/2 BT-0606-P-0606 –
13/4 11/4 51/2 – LT-0606-P-0705
7 311/16 35/16 51/4 37/8 33/16
1 1 3/4
41/2 BT-0704-P-0404 LT-0704-P-0404
11/4 1 43/4 BT-0704-P-0504 –
8 47/16 41/16 6 47/8 43/16
11/4 11/4
3/4
5 BT-0804-P-0505 LT-0804-P-0505
11/2 11/4 5 BT-0804-P-0605 –
11/2 11/2 5 BT-0804-P-0606 –
13/4 11/2 5 BT-0804-P-0706 –
8 61/8 53/4 8 41/4 31/2
11/2 11/4
1
51/4 BT-0806-P-0605 LT-0806-P-0605
11/2 11/2 51/2 BT-0806-P-0606 –
13/4 11/2 53/4 BT-0806-P-0706 –
8 81/8 73/4 10 41/4 31/2
11/2 11/4 1
51/4 – LT-0808-P-0605
13/4 11/4 51/2 – LT-0808-P-0705
10 41/8 33/4 6 61/4 51/2
11/2 11/4
1
51/4 BT-1004-P-0605 LT-1004-P-0605
11/2 11/2 51/2 – LT-1004-P-0606
13/4 11/2 53/4 BT-1004-P-0706 –
10 61/8 53/4 8 61/4 51/2
11/2 11/4
1
51/4 BT-1006-P-0605 LT-1006-P-0605
11/2 11/2 51/2 BT-1006-P-0606 –
13/4 11/2 53/4 – LT-1006-P-0706
10 77/8 73/8 10 53/4 47/8
11/2 11/4
11/4
53/4 BT-1008-P-0605 LT-1008-P-0605
11/2 11/2 6 BT-1008-P-0606 LT-1008-P-0606
6 – LT-1008-P-070613/4 11/2
10 97/8 93/8 12 53/4 47/8
11/2 11/4 11/4
53/4 – LT-1010-P-0605
11/2 11/2 6 – LT-1010-P-0606

8



BALL & PLAIN BEARING DIE SETS

–Rectangular Two Post


BALL BEARING PLAIN BEARING


NOMINAL DIMENSIONS Ball
Bearing
Model Number
Plain
Bearing
Model NumberLR F FF FB P PP DH PH
POST
DIA. L
12 57/8 53/8 8 73/4 67/8
11/2 11/4
11/4
53/4 – LT-1206-P-0605
11/2 11/2 6 BT-1206-P-0606 LT-1206-P-0606
13/4 11/4 6 BT-1206-P-0705 –
13/4 11/2 6 – LT-1206-P-0706
12 77/8 73/8 10 73/4 67/8
11/2 11/4
11/4
53/4 – LT-1208-P-0605
11/2 11/2 6 – LT-1208-P-0606
13/4 11/2 6 BT-1208-P-0706 LT-1208-P-0706
12 97/8 93/8 12 73/4 67/8
13/4 11/2 11/4
6 BT-1210-P-0706 LT-1210-P-0706
13/4 13/4 61/2 BT-1210-P-0707 LT-1210-P-0707
12 111/2 11 14 7 6
13/4 11/2 11/2
61/2 – LT-1212-P-0706
2 11/2 7 – LT-1212-P-0806
14 77/8 73/8 10 93/4 87/8
11/2 11/4
11/4
53/4 – LT-1408-P-0605
13/4 11/4 6 – LT-1408-P-0705
13/4 11/2 6 – LT-1408-P-0706
14 91/2 9 12 9 8
13/4 11/2 11/2
61/2 BT-1410-P-0706 –
2 11/2 7 BT-1410-P-0806 LT-1410-P-0806
14 111/2 11 14 9 8 2 13/4 11/2 7 – LT-1412-P-0807
16 57/8 53/8 8 113/4 107/8 11/2 11/2 11/4 6 – LT-1606-P-0606
16 77/8 73/8 10 113/4 107/8
11/2 11/2
11/4
6 BT-1608-P-0606 LT-1608-P-0606
2 11/2 61/2 BT-1608-P-0806 –
2 2 7 BT-1608-P-0808 LT-1608-P-0808
16 91/2 9 12 11 10
11/2 11/2
11/2
61/2 – LT-1610-P-0606
2 11/2 7 – LT-1610-P-0806
2 2 71/2 – LT-1610-P-0808
18 71/2 7 10 13 12
13/4 11/2 11/2
61/2 BT-1808-P-0806 LT-1808-P-0806
2 11/2 7 – LT-1808-P-0808
18 91/2 9 12 13 12
11/2 11/4 11/2
53/4 BT-1810-P-0806 –
2 11/2 7 BT-1810-P-0808 –
18 151/2 15 18 13 12
13/4 11/2 11/2
6 – LT-1816-P-0806
13/4 11/2 61/2 – LT-1816-P-0808
20 91/2 9 12 15 14
2 11/2 11/2
7 BT-2010-P-0606 LT-2010-P-0606
2 13/4 7 – LT-2010-P-0806
26 71/2 7 10 21 20 11/2 11/2 11/2 6 – LT-2608-P-0606
26 111/2 11 14 21 20
11/2 11/2 11/2
6 – LT-2612-P-0806
2 11/2 61/2 – LT-2612-P-1008

9



BALL & PLAIN BEARING DIE SETS

–Rectangular Four Post

NOMINAL DIMENSIONS Ball
Bearing
Model Number
Plain
Bearing
Model Number
LR FB F FF P PP DH PH
POST
DIA. L
8 8 47/8 43/16 47/8 43/16
1 1
3/4
41/2 BF-0808-P-0404 LF-0808-P-0404
11/4 1 43/4 BF-0808-P-0504 LF-0808-P-0504
11/4 11/4 5 BF-0808-P-0505 LF-0808-P-0505
10 8 41/4 31/2 61/4 51/2
11/4 11/4
1
5 BF-1008-P-0505 LF-1008-P-0505
11/2 11/4 51/4 BF-1008-P-0605 LF-1008-P-0605
11/2 11/2 51/2 BF-1008-P-0606 –
13/4 11/4 51/2 BF-1008-P-0705 –
13/4 11/2 53/4 BF-1008-P-0706 –
10 10 61/4 51/2 61/4 51/2
11/4 11/4
1
5 BF-1010-P-0505 LF-1010-P-0505
11/2 11/4 51/4 BF-1010-P-0605 LF-1010-P-0605
11/2 11/2 51/2 BF-1010-P-0606 –
13/4 11/4 51/2 BF-1010-P-0705 –
13/4 11/2 53/4 BF-1010-P-0706 –
12 8 33/4 27/8 73/4 67/8
11/2 11/4
11/4
53/4 BF-1208-P-0605 LF-1208-P-0605
13/4 11/4 6 BF-1208-P-0705 LF-1208-P-0705
13/4 11/2 6 – LF-1208-P-0706
12 10 53/4 47/8 73/4 67/8
11/2 11/4
11/4
53/4 BF-1210-P-0605 LF-1210-P-0605
11/2 11/2 6 BF-1210-P-0606 LF-1210-P-0606
13/4 11/4 6 BF-1210-P-0705 LF-1210-P-0705
13/4 11/2 6 BF-1210-P-0706 –
13/4 13/4 61/2 BF-1210-P-0707 –
2 11/2 61/2 BF-1210-P-0806 LF-1210-P-0806
2 13/4 61/2 BF-1210-P-0807 –
12 12 73/4 67/8 73/4 67/8
11/2 11/4
11/4
53/4 BF-1212-P-0605 LF-1212-P-0605
11/2 11/2 6 BF-1212-P-0606 LF-1212-P-0606
13/4 11/2 6 BF-1212-P-0706 –
13/4 13/4 61/2 BF-1212-P-0707 LF-1212-P-0707

BF-1210-P-0605



..........A variety of bushings are offered – ball bearing or
plain bearing; in steel, bronze and bronze-plated

..........Select fitting of components is not required

..........Complete interchangeability of parts for fast and
simple maintenance

..........Offset pin for ease of assembly
NOTE: Unless otherwise noted, all dimensions listed are in inches.

10


BALL & PLAIN BEARING DIE SETS

–Rectangular Four Post


BALL BEARING PLAIN BEARING
NOMINAL DIMENSIONS Ball
Bearing
Model Number
Plain
Bearing
Model Number
LR FB F FF P PP DH PH
POST
DIA. L
14 8 33/4 27/8 93/4 87/8
11/2 11/4 11/4
53/4 BF-1408-P-0605 –
13/4 11/2 6 BF-1408-P-0706 LF-1408-P-0706
14 10 53/4 47/8 93/4 87/8
11/2 13/4
11/4
6 – LF-1410-P-0607
13/4 11/2 6 BF-1410-P-0706 –
13/4 13/4 61/2 BF-1410-P-0707 –
14 12 73/4 67/8 93/4 87/8
11/2 11/2
11/4
6 BF-1412-P-0606 –
13/4 13/4 61/2 BF-1412-P-0707 LF-1412-P-0707
2 11/2 61/2 BF-1412-P-0806 –
2 13/4 61/2 BF-1412-P-0807 –
14 14 93/4 87/8 93/4 87/8 11/2 11/2 11/4 6 BF-1414-P-0606 –
16 10 53/4 47/8 113/4 107/8
13/4 11/2
11/4
6 – LF-1610-P-0706
13/4 13/4 61/2 BF-1610-P-0707 LF-1610-P-0707
2 13/4 61/2 BF-1610-P-0807 –
16 12 73/4 67/8 113/4 107/8
11/2 11/2
11/4
6 – LF-1612-P-0606
13/4 11/2 6 BF-1612-P-0706 –
13/4 13/4 61/2 BF-1612-P-0707 –
2 11/2 61/2 – LF-1612-P-0806
2 13/4 61/2 – LF-1612-P-0807
16 16 113/4 107/8 113/4 107/8
13/4 13/4 11/4
61/2 BF-1616-P-0707 –
2 13/4 61/2 BF-1616-P-0807 –
18 12 7 6 13 12 2 13/4 11/2 6 BF-1812-P-0807 LF-1812-P-0807
20 12 7 6 15 14
11/2 11/2
11/2
61/2 – LF-2012-P-0606
13/4 11/2 61/2 – LF-2012-P-0706
13/4 13/4 7 BF-2012-P-0707 –
2 11/2 7 – LF-2012-P-0806
2 2 71/2 – LF-2012-P-0808
24 16 11 10 19 18
21/2 11/2 11/2
71/2 – LF-2416-P-100621/2 2 8 – LF-2416-P-1008

NOTE: Unless otherwise noted, all dimensions listed are in inches.

11


CUSTOM ALL-STEEL DIE SETS



–Large Two Post Styles


LEMPCO’s Large Two Post All-Steel Die Sets are offered in Ball Bearing and Plain Bearing designs, in
Back Post, Center Post and Diagonal Post styles, and in Precision grade.

Suggested minimum dimensions are shown in the charts. Sizes are not limited to these suggestions, since
customer specifies “A” and “B” dimensions as well as “J” and “K” thicknesses. Sets with “A” dimensions
more than 100" and “B” dimensions more than 60" can be provided, as well as reverse sets with “B” greater
than “A”. Special machining, torch cutting and welded components are available to the details of your print.

These die sets may not be returned for credit.

BB-AS-33 BB-AS-34 BB-AS-35
P-AS-33 P-AS-34 P-AS-35
AS-33 STYLE AS-34 STYLE AS-35 STYLE
BALL BEARING BALL BEARING BALL BEARING
PLAIN BEARING PLAIN BEARING PLAIN BEARING

12



ALL-STEEL DIE SETS


–Large Two Post Styles

SUGGESTED MINIMUM DIMENSIONS


WHEN
B=
A = 6 to 11" A = 12 to 17" A = 18 to 23" A = 24 to 29"
J K O P J K O P J K O P J K O P
6 to 8" 11/2 11/2 11/4 1 11/2 11/2 11/4 1 11/2 11/2 11/2 11/4 11/2 11/2 11/2 11/4
9 to 11" 11/2 11/2 11/2 11/4 11/2 11/2 11/2 11/4 13/4 13/4 13/4 11/2 13/4 13/4 13/4 11/2
12 to 17" 11/2 11/4 13/4 13/4 13/4 11/2 2 2 2 13/4 2 2 2 13/4
18 to 23" 13/4 11/2 13/4 11/2 2 2 2 13/4 21/2 21/2 21/2 2
24 to 29" 2 13/4 2 13/4 21/2 2 21/2 21/2 21/2 2
30 to 44" 21/2 2 21/2 2 21/2 2 3 21/2
45 to 60" 3 21/2 3 21/2 3 21/2 3 21/2

WHEN
B=
A = 30 to 44" A = 45 to 69" A = 70 to 100"
J K O P J K O P J K O P
6 to 8" 13/4 13/4 13/4 11/2 2 2 2 13/4 2 2 2 13/4
9 to 11" 2 2 2 13/4 2 2 2 13/4 2 2 2 13/4
12 to 17" 21/2 21/2 21/2 2 21/2 21/2 21/2 2 21/2 21/2 21/2 2
18 to 23" 21/2 21/2 21/2 2 21/2 21/2 21/2 2 21/2 21/2 21/2 2
24 to 29" 21/2 21/2 21/2 2 3 3 3 21/2 3 3 3 21/2
30 to 44" 3 3 21/2 2 3 3 3 21/2 3 3 3 21/2
45 to 60" 3 21/2 3 3 3 21/2 31/2 31/2 3 21/2

DIMENSIONAL VARIATIONS


Nom.
Guide
Post
Dia.
BALL BEARING PLAIN BEARING
Sleeve Bushing Shoulder Bushing Sleeve Bushing Shoulder Bushing
C F V FF C F V FF C F V FF C F V FF
1 11/2 2 3/8 23/8 11/2 2 1/2 21/2 11/2 2 1/4 21/4 11/2 2 3/8 23/8
11/4 13/4 23/8
1/2 27/8 13/4 23/8
5/8 3 13/4 23/8
1/4 25/8 13/4 23/8
3/8 23/4
11/2 2 23/4
1/2 31/4 2 23/4
5/8 33/8 2 23/4
1/4 3 2 23/4
3/8 31/8
13/4 21/8 3 1/2 31/2 21/8 3 5/8 35/8 21/8 3 1/4 31/4 21/8 3 3/8 33/8
2 23/8 33/8
5/8 4 23/8 33/8
7/8 41/4 23/8 33/8
1/4 35/8 23/8 33/8
3/8 33/4
21/2 25/8 37/8
5/8 41/2 25/8 37/8
7/8 43/4 25/8 37/8
3/8 41/4 25/8 37/8
5/8 41/2
3 3 41/2
5/8 51/8 3 41/2
7/8 53/8 3 41/2
3/8 47/8 3 41/2
5/8 51/8

FORMULAS PLATE THICKNESSES STOCKED
FOR IMMEDIATE FABRICATION
AA = A – 2V S = A + 2F 1 11/8 11/4 13/8 11/2
15/8 13/4 17/8 2 21/4BB = B – V
T = B + F 21/2 23/4 3 31/4 31/2
Y = A – 2FF 4 41/2 5 51/2 6
X = B – 2FXX = B – 2FF 61/2 7

SEE PAGE 18 FOR DETAILS ON ORDERING CUSTOM DIE SETS.

NOTE: Unless otherwise noted, all dimensions listed are in inches.

13


ALL-STEEL DIE SETS



–Large Four Post Styles


LEMPCO's Large Four Post All-Steel Die Sets are available in Ball Bearing and Plain Bearing types, in two
designs of the die and punch holders, and in Precision grade.

Charted dimensions on the facing page are for your convenience in designing a die set to your special
requirements, but sizes are not limited to these listed dimensions. Customer specifies “A” and “B” dimensions
and “J” and “K” shoe thicknesses. Sets will be provided with “A” dimension in excess of 100" and “B” dimension
in excess of 60", as well as reverse sets in which “B” is greater than “A”. Special machining, torch cutting
and welded components are available to your print.

These die sets may not be returned for credit.

BB-AS-37 BB-AS-38
P-AS-37 P-AS-38
AS-37 STYLE AS-38 STYLE
BALL BEARING BALL BEARING
PLAIN BEARING PLAIN BEARING

14



ALL-STEEL DIE SETS


–Large Four Post Styles

SUGGESTED MINIMUM DIMENSIONS


B=
A = 6 to 11" A = 12 to 17" A = 18 to 23" A = 24 to 29"
J K O H R J K O H R J K O H R J K O H R
6 to 8" 11/4 1 1 N/A N/A 11/2 1 11/4 N/A N/A 11/2 11/4 11/2 N/A N/A 11/2 11/4 13/4 N/A N/A
9 to 11" 11/2 1 1 N/A N/A 11/2 11/4 11/4 N/A N/A 11/2 11/4 11/2 N/A N/A 13/4 11/2 13/4 N/A N/A
12 to 17" 11/4 11/2 11/4 11/4 N/A N/A 13/4 11/2 11/2 N/A N/A 13/4 11/2 13/4 N/A N/A
18 to 23" 11/2 11/2 13/4 11/2 11/2 N/A N/A 2 13/4 13/4 N/A N/A
24 to 29" 13/4 13/4 13/4 2 13/4 13/4 N/A N/A
30 to 44" 2 2 2 2
45 to 60" 2 2 2 2

WB=
A = 30 to 44" A = 45 to 69" A = 70 to 100"
J K O H R J K O H R J K O H R
6 to 8" 13/4 11/2 2 5 3 2 11/2 2 5 4
9 to 11" 13/4 11/2 2 5 3 2 11/2 2 5 4 21/2 13/4 21/2 6 4
12 to 17" 2 13/4 2 5 3 21/2 13/4 2 5 4 21/2 2 21/2 6 4
18 to 23" 2 13/4 2 5 3 21/2 13/4 2 5 4 3 2 21/2 6 4
24 to 29" 21/2 2 2 5 3 21/2 2 2 5 4 3 2 21/2 6 4
30 to 44" 21/2 2 2 5 3 3 2 2 5 4 31/2 21/2 21/2 6 4
45 to 60" 2 3 2 2 5 4 31/2 21/2 21/2 6 4

DIMENSIONAL VARIATIONS


Nom.
Guide
Post
Dia.
BALL BEARING PLAIN BEARING
Sleeve Bushing Shoulder Bushing Sleeve Bushing Shoulder Bushing
C F V FF C F V FF C F V FF C F V FF
1 11/2 2 3/8 23/8 11/2 2 1/2 21/2 11/2 2 1/4 21/4 11/2 2 3/8 23/8
11/4 13/4 23/8
1/2 27/8 13/4 23/8
5/8 3 13/4 23/8
1/4 25/8 13/4 23/8
3/8 23/4
11/2 2 23/4
1/2 31/4 2 23/4
5/8 33/8 2 23/4
1/4 3 2 23/4
3/8 31/8
13/4 21/8 3 1/2 31/2 21/8 3 5/8 35/8 21/8 3 1/4 31/4 21/8 3 3/8 33/8
2 23/8 33/8
5/8 4 23/8 33/8
7/8 41/4 23/8 33/8
1/4 35/8 23/8 33/8
3/8 37/8
21/2 25/8 37/8
5/8 41/2 25/8 37/8
7/8 43/4 25/8 37/8
3/8 41/4 25/8 37/8
5/8 41/2
3 3 41/2
5/8 51/8 3 41/2
7/8 53/8 3 41/2
3/8 47/8 3 41/2
5/8 51/8

FORMULAS PLATE THICKNESSES STOCKED
FOR IMMEDIATE FABRICATION
XX = B – 2FF
1 11/8 11/4 13/8 11/2
15/8 13/4 17/8 2 21/4
21/2 23/4 3 31/4 31/2
Y = A – 2FF 4 41/2 5 51/2 6
61/2 7

SEE PAGE 18 FOR DETAILS ON ORDERING CUSTOM DIE SETS.

NOTE: Unless otherwise noted, all dimensions listed are in inches.

15


CUSTOM ALUMINUM DIE SETS


–All Styles


HIGH QUALITY, HIGH STRENGTH ALUMINUM PRECISION DIE SETS


..........Light weight, tough and 1/3 the weight of steel

..........Attractive alternative to tool and other steels when weight is a consideration

..........Production and chemistry refinements help minimize “soft” centers or pockets

..........Allows extensive machining without material movement or additional thermal
treatment

..........Unlike many other materials, aluminum will not limit faster cutting speeds, thereby
permitting higher production rates, resulting in lower machining costs
All are sets made to order. When your requirements need aluminum, use LEMPCO.

These die sets may not be returned for credit.

BB-AS-33 BB-AS-34 BB-AS-35 BB-AS-37 BB-AS-38
P-AS-33 P-AS-34 P-AS-35 P-AS-37 P-AS-38

SEE PAGE 18 FOR DETAILS ON ORDERING CUSTOM DIE SETS.

16


HOW TO ORDER


1. Select either Ball Bearing or Plain Bearing in the required size, grade, and thickness
combination. Show the catalog number of the selected die set on your order.
2. Specify the quantity.
3. Specify the type of bushing.
4. Specify length “L”. For Ball Bearing sets, this is the Minimum Shut Height dimension.
For Plain Bearing sets, this is the dimension from the bottom of the die holder to the
top of the guide post.
5. Specify “no shank” or “Lempcoshank.” If “Lempcoshank,” give the catalog number of
the kit desired. For 0604-GA-1 and GD-1 kick press sets, specify one of these:
1" diameter x 21/8" long OR 19/16" x 21/8."

6. Specify thickness combinations other than shown. Special or exact thicknesses are
available at extra cost.
7. Tell us how to ship. Otherwise, we will ship “Best Way” in our judgment.
1. Select either Ball Bearing or Plain Bearing in the required size, grade, and thickness
combination. Show the catalog number of the selected die set on your order.
2. Specify the quantity.
3. Specify the type of bushing.
4. Specify length “L.” For Ball Bearing sets, this is the Minimum Shut Height dimension.
For Plain Bearing sets, this is the dimension from the bottom of the die holder to the
top of the guide post.
5. Specify “no shank” or “Lempcoshank.” If “Lempcoshank,” give the catalog number of
the kit desired.
6. Specify thickness combinations other than shown. Special or exact thicknesses are
available at extra cost.
7. Tell us how to ship. Otherwise, we will ship “best way” in our judgment.
1. Select either Ball Bearing or Plain Bearing in the required size, grade, and thickness
combination. Show the catalog number of the selected die set on your order.
2. Specify the quantity.
3. Specify the type of bushing.
4. Specify length “L.” For Ball Bearing sets, this is the Minimum Shut Height dimension.
For Plain Bearing sets, this is the dimension from the bottom of the die holder to the
top of the guide post.
5. These die sets are stocked “no shank” only. If “Lempcoshank” is desired, give the
catalog number of the kit. Machining of the punch holder for “Lempcoshank” is
available on special factory order only at an extra cost.
6. Specify thickness combinations other than shown. Special or exact thicknesses are
available at extra cost.
7. Tell us how to ship. Otherwise, we will ship “best way” in our judgment.
Flanged
Two Post


Rectangular
Two Post


Rectangular
Four Post


17



HOW TO ORDER


Custom
All-Steel
or
Aluminum
Die Sets

. . . BALL BEARING SETS . . . PLAIN BEARING SETS

1.
Specify Ball Bearing. 1. Specify Plain Bearing.
2.
Specify Series (AS-33, etc.). Prefix to 2. Specify Series (AS-33, etc.). Prefix to
the series designation the symbol BB. the series designation the symbol P.
Example: BB-AS-33.
Example: P-AS-33.

3.
Specify Precision.
4.
Specify the material (steel or aluminum).
5.
Specify the dimensions “A” and “B”.
6.
Specify the thickness of the die holder “J” and the punch holder “K”.
7.
Specify the type of bushing. Unless otherwise specified, Ball Bearing Sets will be
furnished with Press Fit Steel Sleeve Bushings, and Plain Bearing Sets with your
choice of Plain Bearing Precision Bushings. Also note the differences in the “F”, “V”,
and “FF” dimensions as shown in the Dimensional Variations Chart.
8.
Specify the length “L”. For Ball Bearing sets, this is the Minimum Shut Height
dimension. For Plain Bearing sets, this is the dimension from the bottom of the die
holder to the top of the Guide Post.
9.
Specify the diameter of the Guide Post if other than listed. Larger or smaller
diameter guide posts than listed will cause dimensional variations. See
“Dimensional Variations” data.
10.
Specify “no shank” or “Lempcoshank”. Specify the shank diameter and length. If
“Lempcoshank”, give the catalog number of the kit desired. Specify the exact
location of the shank relative to the guide post locations. All shanks are furnished
at extra cost.
11.
Tell us how to ship; otherwise we will ship “best way” in our judgment.
NOTE: When ordering a Lempco 4-Post Special Die Set, indicate on the Purchase Order
and on the CAD file the pin offset you require or use the Lempco standard pin offset:

a. Left rear pin is offset to the RIGHT.
b. Die sets up to 48" left to right are offset .125" from pin location.
c. Die sets over 48" left to right are offset .250" from pin location.
ALL SIZES/ALL SETS
MADE TO ORDER
FOR PRICES CALL 1-800-321-8632


18



LEMPCOSHANK®



ASSEMBLING THREADED
TAP DRILL SPECIFICATIONS SHANKS


NOTE: Locking keys are permanent.

STEP-BY-STEP ASSEMBLY OF LEMPCOSHANK KITS

19
PUNCH
A NEW IDEA FORDIE SET USERS


A new idea for die set users –
that’s LEMPCOSHANK®. Stronger
than even welded shanks, it can be
installed at the die maker’s convenience
and need not interfere with
his work. Order any size shank for
any plate thickness or size – you
can get it from stock.

From 11/2" diameter upward, the
LEMPCOSHANK® kit is comprised
of a threaded stud, shank nut and
two locking keys. In the 1" diameter
(for small sets), the kit is a threaded
shank. Both types are manufactured
to bottom squarely and tighten firmly
into accurately prepared sockets.

LEMPCO research proves that
a properly assembled LEMPCOSHANK
® – its threaded components
tightened and keyed – resists
displacement beyond the fatigue
limit of a welded shank. There are
no voids in punch holder nor
interruptions in die surface. Only
standard tools are needed for
installation. If additional stability is
desired for a 1" threaded shank, a
lock can be inserted as suggested
by the schematic.


LEMPCOSHANK®


WHY LEMPCOSHANK® OUTPERFORMS ALL OTHERS


The prestressed rigidity which enables
Lempcoshank® assemblies to out-
perform even welded shanks starts
with bottoming of the stud in its punch
holder socket. The lowermost threads
of both members are stressed by
bottoming, as shown at left, without
any material effect on the flat, ground
working surface of the punch holder.
Assembling the shank nut to the stud
causes the nut to bottom against the
machined top surface of the punch
holder, creating a stress pattern (at
right) in the nut and the adjacent
portions of the shank stud, and in the
punch holder itself.
These assembly steps create stresses
which are not only additive but also
cumulative (illustrated at left). All
members are prestressed, the critical
portions being fully preconditioned.
The locking keys (not shown) function
in the rigidly stressed areas, providing
additional stability for entire assembly.
LEMPCOSHANK® SPECIFICATIONS


SHANK
SIZE
PUNCH
HOLDER
THICKNESS
KIT
NUMBER
1 x 1" 1" 100-1608-04
1 x 1" 11/4" 100-1608-05
1 x 1" 11/2" * 100-1608-06
1 x 11/4" 1" 100-1610-04
1 x 11/4" 11/4" 100-1610-05
1 x 11/4" 11/2" * 100-1610-06
1 x 11/2" 1" 100-1612-04
1 x 11/2" 11/4" 100-1612-05
1 x 11/2" 11/2" * 100-1612-06
1 x 13/4" 1" 100-1614-04
1 x 13/4" 11/4" 100-1614-05
1 x 13/4" 11/2" * 100-1614-06
11/2 x 21/8" 1" 100-2417-04
11/2 x 21/8" 11/4" 100-2417-05
11/2 x 21/8" 11/2" * 100-2417-06

SHANK
SIZE
PUNCH
HOLDER
THICKNESS
KIT
NUMBER
19/16 x 21/8" 1" 100-2517-04
19/16 x 21/8" 11/4" 100-2517-05
19/16 x 21/8" 11/2" * 100-2517-06
2 x 27/8" 1" 100-3223-04
2 x 27/8" 11/4" 100-3223-05
2 x 27/8" 11/2" * 100-3223-06
21/2 x 27/8" 1" 100-4023-04
21/2 x 27/8" 11/4" 100-4023-05
21/2 x 27/8" 11/2" * 100-4023-06
3 x 27/8" 1" 100-4823-04
3 x 27/8" 11/4" 100-4823-05
3 x 27/8" 11/2" * 100-4823-06

* NOTE: Any shank can be put in any thickness of punch
holder, up to a maximum of 6".
20



DIE SETS



The LEMPCO Value Proposition


LEMPCO is a recognized leader in providing quality ball bearing components:
1.
Rotainer® designed ball cage that minimizes tracking.
2.
Precision Rotainer® and retainer that provides accuracy and repeatability
in high speed applications.
3.
Quality pins and bushings are made from 52100 tool steel.

LEMPCO offers high quality die sets with either ball bearing or plain bearing components.
Pins and bushings for both plain and ball bearing die sets are manufactured using high
quality steel and are precision ground.

LEMPCO has a strong distribution network with over 250 distributors located around the
world to service our valued customers.

LEMPCO’s manufacturing capabilities allow larger size die sets to be offered (240 in. by
120 in.) and complex machining to be available with exceptional deliveries.
QUALITY .. DEPENDABILITY .. SERVICE
SINCE 1918
THE GLOBAL STANDARD WITH DISTRIBUTORS WORLDWIDE


Quality, precision and dependability
are the requirements of today’s production processes–
from ultra-high-speed stamping technology
to computer-driven CNC manufacturing.


LEMPCO designs its components in order to provide you with precision and
cost-effective performance... run after run. We have the proven experience
in the selection of metals, developing designs and understanding the details
of your needs.


LEMPCO KNOWS WHAT IT TAKES TO KEEP YOUR DIES RUNNING
AND WE KNOW HOW TO DELIVER IT.
 

Worldwide Presence

England, Germany Thailand

 

England, Germany and Thailand

Please click on country name nearest to you to see our contact details or to enquire about our products and services.

Agent for Universal Die & Stampings

          
Universal Die & Stampings