Chain Pitch - Inch: 0.5
Chain Size: 40
Chain Pitch - Millimeter: 12.7
Chain Type: Roller Chain
Bearing Type: Ball Bearing

Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 3.14
Length Thru Bore - Millimeter: 11.125
Other Features: Pre Lubricated

Chain Pitch - Inch: 0.625
Chain Size: 50
Chain Pitch - Millimeter: 15.875
Chain Type: Roller Chain
Bearing Type: Ball Bearing

Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 3.72
Length Thru Bore - Millimeter: 11.125
Other Features: Pre Lubricated

Bore Profile: Finished Bore
Component: Hub
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 2.531

Length Thru Bore - Millimeter: 34.925
Other Features: Components May or May Not Intermix Among Brands | 3 Jaws
Mounting Method: Set Screw
Hub Diameter - Millimeter: 64.287
Coupling Type: Jaw Coupling

Inch - Metric: Inch
Outside Diameter - Inch: 3.05
Outside Diameter - Millimeter: 77.47
Bore - Millimeter: 0
Other Features: Bushing Sold Separately | Bushing Not Included | Split Taper Bushing | Solid Style | Bore Size 3/8 and 7/16 has No Keyway

Global Part Number GPN: 581731
Mounting Method: Bushed
Belt Series: 3L | 4L | A
Bushing Size: H
Number of Grooves: 1

Component: Spider
Inch - Metric: Inch
Material: Urethane
Outside Diameter - Inch: 3.75
Outside Diameter - Millimeter: 95.25

Other Features: Components May or May Not Intermix Among Brands
Coupling Type: Jaw Coupling