1
F O R M
Installation and Maintenance Instructions for
Models KK, KK-1K - KK-2K, KK-2GD, KK-2GD1K
bore size 15-40 mm Clutch
PS-740-0001
4146-004E
Revised
May 2022
© 2008, 2022 Rexnord Corporation, All Rights Reserved. MCIM22031E • Form# 4146-004E
• Periodic inspections should be performed. Failure to perform proper
maintenance can result in premature product failure and personal injury.
• All electrical work should be performed by qualified personnel and
compliant with local and national electrical codes.
• Read and follow all instructions carefully.
• Disconnect and lock out power before installation and maintenance.
Working on or near energized equipment can result in severe injury.
• Do not operate equipment without guards in place. Exposed
equipment can result in severe injury or death.
• Read and understand the information in this section and in this
manual completely before installing, operating or maintaining this
equipment. Failure to follow this instruction could result in severe
injury or death.
GENERAL SAFETY INSTRUCTIONS
indicates a hazard which, if not avoided, will result in
serious injury or death.
indicates a hazard which, if not avoided, could result in
minor or moderate personal injury.
indicates a hazard which, if not avoided, could result
in serious injury or death.
indicates information considered important, but not hazard-
related (e.g. messages relating to property damage).
Motion Control Solutions
Regal Rexnord
111 W. Michigan Street
Milwaukee, WI 53203
Application Engineering: 800 626 2093
A. Preinstallation
Position clutch so that overrunning direction is compatible to requirements
of mechanism. Check shaft and bore of housing for correct dimensions
to insure press fit on both I. D. and O. D. of clutch. (n 6 tolerance on shaft
and N 6 for housing bore).
Model No.
Recommended
shaft dia.
(mm)*, (n6)
Recommended housing dia. (mm)*,
(N6)
KK15-1K,
KK15-2GD1K
KK15-2K
KK15-1K/KK15-2K/
KK15-2GD1K
15
-0.008
35
-0.012
35
-0.002
-0.028
-0.028
-0.018
KK17-1K/KK17-2K/
KK17-2GD1K
17
-0.008
40
-0.012
40
-0.002
-0.028
-0.028
-0.018
KK20-1K/KK20
-2K/KK20-2GD1K
20
-0.010
47
-0.012
47
-0.003
-0.031
-0.028
-0.022
KK25-1K/KK25-
2K/KK25-2GD1K
25
-0.010
52
-0.014
52
-0.003
-0.031
-0.033
-0.022
KK30-1K/KK30-2K/
KK30-2GD1K
30
-0.010
62
-0.014
62
-0.003
-0.031
-0.033
-0.022
KK35-1K/KK35-2K/
KK35-2GD1K
35
-0.012
72
-0.014
72
-0.006
-0.037
-0.033
-0.025
KK40-1K/KK40-2K/
KK40-2GD1K
40
-0.012
80
-0.014
80
-0.006
-0.037
-0.033
-0.025
*Note: To convert mm to inches, divide by 25.4
Model No.
Recommended shaft
dia. (mm)*, (n6)
Recommended housing
dia. (mm)*, (N6)
KK15/KK15-2GD
15
+0.023
35
-0.012
+0.012
-0.028
KK17/KK17-2GD
17
+0.023
40
-0.012
+0.012
-0.028
KK20/KK20-2GD
20
+0.028
47
-0.012
+0.015
-0.028
KK25/KK25-2GD
25
+0.028
52
-0.014
+0.015
-0.033
KK30/KK30-2GD
30
+0.028
62
-0.014
+0.015
-0.033
KK35/KK35-2GD
35
+0.033
72
-0.014
+0.017
-0.033
KK40/KK40-2GD
40
+0.033
80
-0.014
+0.017
-0.033
*Note: To convert mm to inches, divide by 25.4
