Inch - Metric: Inch
Outside Diameter - Inch: 18.75
Outside Diameter - Millimeter: 476.25
Bore - Millimeter: 36.525
Bore - Inch: 1.438

Other Features: Arm Style
Mounting Method: Finished Bore
Belt Series: 4L | A | 5L | B
Bushing Size: No Bushing
Number of Grooves: 2

Inch - Metric: Inch
Outside Diameter - Inch: 15.75
Outside Diameter - Millimeter: 400.05
Bore - Millimeter: 36.525
Bore - Inch: 1.438

Other Features: Arm Style
Mounting Method: Finished Bore
Belt Series: 4L | A | 5L | B
Bushing Size: No Bushing
Number of Grooves: 2

Pitch Diameter - Inch: 54.138
Inch - Metric: Metric
Outside Diameter - Inch: 53.968
Face Width - Millimeter: 311.15
Face Width - Inch: 12.25

Belt Pitch: 20 MM
Other Features: Bushing Sold Separately | Bushing Not Included | QD Bushing | Arm Style
Pitch Diameter - Millimeter: 1375.105
Mounting Method: Bushed
Belt Width - Millimeter: 290

Pitch Diameter - Inch: 54.138
Inch - Metric: Metric
Outside Diameter - Inch: 53.968
Face Width - Millimeter: 361.95
Face Width - Inch: 14.25

Belt Pitch: 20 MM
Other Features: Bushing Sold Separately | Bushing Not Included | QD Bushing | Arm Style
Pitch Diameter - Millimeter: 1375.105
Mounting Method: Bushed
Belt Width - Millimeter: 340

Bore Profile: Finished Bore
Component: Hub
Inch - Metric: Metric
Material: Steel
Outside Diameter - Inch: 17.75

Length Thru Bore - Millimeter: 183.388
Other Features: Components May or May Not Intermix Among Brands
Mounting Method: Set Screw
Hub Diameter - Millimeter: 381
Coupling Type: Jaw Coupling