Inch - Metric: Metric
Outside Diameter - Inch: 1.938
Length Thru Bore - Millimeter: 49.276
Length Thru Bore - Inch: 1.94
Outside Diameter - Millimeter: 49.225

Bore - Millimeter: 39
Bore - Inch: 1.535
Other Features: Keyway on ID
Bushing Series: P1

Inch - Metric: Metric
Outside Diameter - Inch: 4
Length Thru Bore - Millimeter: 73.152
Length Thru Bore - Inch: 2.88
Outside Diameter - Millimeter: 101.6

Bore - Millimeter: 39
Bore - Inch: 1.535
Other Features: Keyway on ID
Bushing Series: R1

Inch - Metric: Metric
Outside Diameter - Inch: 4
Length Thru Bore - Millimeter: 123.952
Length Thru Bore - Inch: 4.88
Outside Diameter - Millimeter: 101.6

Bore - Millimeter: 39
Bore - Inch: 1.535
Other Features: Keyway on ID
Bushing Series: R2

Bore Profile: Finished Bore
Component: Hub
Inch - Metric: Metric
Material: Steel
Outside Diameter - Inch: 6.75

Length Thru Bore - Millimeter: 67.818
Other Features: Components May or May Not Intermix Among Brands
Mounting Method: Set Screw
Hub Diameter - Millimeter: 139.7
Coupling Type: Jaw Coupling