• Morse Mechanical Clutches offer the most complete and versatile selection of backstop, overriding, and index Clutches in the industry
• PB series clutch features precision formed cams providing high torque capacities with excellent wear life. These models are suitable for general duty applications.
• A bonze seal maintains race concentricity. They a asymmetrical by design, so must be ordered according to rotation requirements.

Technical Specifications

Hub Diameter (in)	1.625 in
Model	PB-8A
Overall Diameter (in)	3.25 in
Length to Snap Ring Groove (in)	1.75 in
Lubrication Type	Grease
Major Diameter Width (in)	1.6875 in
Mounting Length (in)	1.4375 in
Length to Groove	1.315/1.320
Snap Ring (Not Furnished)	RS175
Mounting Diameter (in)	1.750/1.749 in
Key for Bore Size	3/16 x 3/32
Type	CAM Clutches
Overall Width (in)	3.5625 in
Configuration	LH
Groove Diameter	1.696/1.686
RPM Max. - Inner Race	1600
Groove Width	.056/.076
Keyway Length (in)	1.0625 in
RPM Max. - Outer Race	650
Keyway	1/4 x 1/8
Add'l Bearing Support Requirement	No
Rated Torque Capacity (ft.-lbs.)	450
Backstopping Clutch	Yes
Overrunning Clutch	Yes
Bore Size (in)	0.875 in
Product Type	PB Series
Indexing Clutch	Yes

General Specifications

UPC	662288408109
Weight	3.75 LB
Packaged Length	3.75 IN
Packaged Width	3.75 IN
Packaged Height	3.63 IN
HTC	8483.60.4040
Country of Origin	Mexico