RADIAL END ROLLING HOLDERS |
These holders are recommended for knurling narrow
bands where the pitch change is less than 25%. For a more precise
knurl pattern on wider bands the adjustable end rolling holder along
with shank conical knurling dies should be used. See below for more
info. Please contact Accu Trak if you have any questions selecting
the right holder for your job.
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ADJUSTABLE END ROLLING
HOLDERS
FOR SCREW MACHINES AND AUTOMATICS
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The End Rolling System tool holder in
its normal configuration has enough adjustment for the Die to Knurl
up to a 1.25 inch diameter. The slide can be reversed and now the
maximum diameter is 2.50 in. When knurling on these larger diameters
the tip of the Die isn't on the center of the part, but if the knurl
band on the part is narrow an acceptable impression can be made.
In general if the rate of pitch change on the part is within 10%
of the rate of pitch change on the Die a good straight knurl will
be made. The greater the deviation, the more 'S' shaped will be the
impression.
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Pricing
/ Specifications - Inch Shanks
Pricing
/ Specifications - Metric Shanks |
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FOR BEST RESULTS THE FOLLOWING CONDITIONS
SHOULD BE FOLLOWED DURING SET-UP
- Center the tip of the knurling die close
to the center of the part.
- Select the knurl die with a pitch that
closely matches the pitch of the part.
- If knurl is 'Double Tracking' loosen button
head screws and adjust slide a small amount.
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SHANK CONICAL KNURLING DIES
For use with adjustable or fixed end rolling
holders shown above |
STANDARD
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HEAVY
DUTY
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Part OD |
Ideal Die
Contact
Point |
TPI at Contact Point |
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Fine
72T |
Med-Fine
60T |
Medium
48T |
Med-Course
36T |
Coarse
24T |
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.250 |
.177 |
130 TPI |
108
TPI |
87 TPI |
65
TPI |
43 TPI |
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.500 |
.353 |
65 TPI |
54
TPI |
43 TPI |
32
TPI |
22 TPI |
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.750 |
.530 |
43 TPI |
36
TPI |
29 TPI |
22
TPI |
14 TPI |
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1.000 |
.707 |
32 TPI |
27
TPI |
22 TPI |
16
TPI |
11 TPI |
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1.237 |
.875 |
26 TPI |
22
TPI |
17 TPI |
13
TPI |
9 TPI |
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1.591 |
1.125 |
20 TPI |
17
TPI |
14 TPI |
10
TPI |
7 TPI |
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Approx. # Teeth Rolled
with Tip at Center |
102T
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85T
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68T
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51T |
34T
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Replacement Bearing Kits
for use with Face Knurling Holders
Kit includes:
2 hardened washers, thrust bearing,
O ring, and 2 needle bearings
HOLDER TYPE |
TOOL# |
PRICE |
STANDARD |
OR KTBRG |
$26 |
HEAVY DUTY |
OR KTHDBR |
$30 |
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Replacement
Carbide Bushing
for use with Face Knurling Holders
Includes:
1 carbide bushing (replaces needle bearings)
HOLDER TYPE |
TOOL# |
PRICE |
STANDARD |
OR KT45CB |
$48 |
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Replacement
Kits for use with
Face Knurling Holders
Includes:
2 hardened washers, 1 thrust bearing and O ring.
HOLDER
TYPE |
TOOL# |
PRICE |
STANDARD |
OR KTBRG1 |
$16 |
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END ROLLING OVER A STUB
CORRECT - INDIVIDUALLY
ENGINEERED
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Each job is unique and is individually engineered
accordingly. The body is custom made based on part specifications
with a normal delivery time of about 5-7 days. Please call
(800) 433-4933 for pricing and additional information.
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UNIVERSAL -
USES KP & MT SERIES
KNURLS
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In situations where the knurl band is narrow or the impression need
not be exact, the universal end rolling design may be the answer.
Designed to use stock knurling dies (see KP & MT),
the head is adjustable to roll on different diameters. Priced at
$307, this holder is available with a 3/4" or 1" round
shank.
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BUMP -
USES ML SERIES
KNURLS
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The above holder, which uses ML
Series, counterbored knurls, can be used
on both conventional and CNC lathes.
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