Shaft Collar Technical Information

INSTALLATION:

√		Verify that both the shaft and collar dimensions are accurate and match.
√		Clean both the bore of the collar and the shaft.
√		Lightly oil the shaft.
√		Place the collar on the shaft where required and hand tighten the screw(s) until snug.
√		Tighten the screw(s) to the fully recommended seating torque.
√		When installing a collar with two screws it is important the screws are tightened evenly
√		When installing a split collar, it is important that a small gap remain between the two halves of the collar.

MATERIAL:

STEEL		High Strength, Low Carbon Mild Steel 1018 or equivalent
STAINLESS STEEL		Type 303 Austenitic, Non-magnetic(18-8)
ALUMINUM		Type 6061 ö T651

STANDARD FINISHES:

STEEL
Solid Shaft Collars Split Shaft Collars		Bright Zinc, Black Oxide, Un-Finished Black Oxide
STAINLESS STEEL		Bright
ALUMINUM		Plain

SPECIALTY FINISHES:

Chrome Black Chrome Bright Zinc (split shaft collars) Yellow Zinc Paint Custom

SCREWS:

Solid Shaft Collar-Set		Hex Socket, Cut Point Set Screw, 3A Thread
Split Shaft Collar-Cap		Hex Socket, Cut Point Cap Screw, 3A Thread

SCREW KEY SIZES:

TOLERANCE:

WIDTH, COLLARS		-.010", +0.005"
LENGTH, COUPLINGS		-0.015", +0.015"
BORE DIAMETER:
SHAFT COLLARS		1/8" - 1":               -0.000", +.003" 1 1/16" - 1 7/8":    -0.000", +.0045" 1 15/16" & Up:       -0.000", +.0056"
COUPLINGS		1/4" - 2"               -0.000", +.003"

RELIEF CUT:

All Force single split shaft collars have a relief cut, or saw cut, opposite the cap screw on the inside diameter. The relief cut allows the shaft collar to better flex providing greater holding power as well as helping the collar to tighten undersized shafts.

KEYWAY DIMENSIONS:

SEATING TORQUE :

AXIAL HOLDING POWER :

The screw size is the primary determining factor of a shaft collar's axial holding power. The following tables display the approximate maximum axial load that a collar can hold without slippage. The following data is based upon proper installation and recommended screw seating torque. The following data is to serve as a guide only and is not a guarantee. As every application is different, we recommend customers test their individual applications in order to select the appropriate collar.

DISCLAIMER :

All technical data is meant for guide purposes only and the information herein is subject to change without notice. Pacific Industries, Inc. does not intend any technical data to serve as a warranty; express or implied.