Pilot Diameter - Millimeter: 311.15
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 12.5
Length Thru Bore - Millimeter: 162.052

Nominal Bolt Circle Diameter Round - Inch: 10
Other Features: 3/4-10 Tapped Hole | 4 Tapped Hole | Double Split
Pilot Length - Inch: 2.963
Mounting Method: Bushed
Nominal Bolt Circle Diameter Round - Millimeter: 254

Pilot Diameter - Millimeter: 139.7
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 12.5
Length Thru Bore - Millimeter: 176.225

Nominal Bolt Circle Diameter Round - Inch: 0
Other Features: Hub Bore Range 2-13/16 To 3 | Used With Sprocket
Pilot Length - Inch: 5.5
Mounting Method: Minimum Plain Bore
Nominal Bolt Circle Diameter Round - Millimeter: 0

Pilot Diameter - Millimeter: 139.7
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 12.5
Length Thru Bore - Millimeter: 176.225

Nominal Bolt Circle Diameter Round - Inch: 0
Other Features: Used With Sprocket
Pilot Length - Inch: 5.5
Mounting Method: Finished Bore
Nominal Bolt Circle Diameter Round - Millimeter: 0

Pilot Diameter - Millimeter: 139.7
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 12.5
Length Thru Bore - Millimeter: 176.225

Nominal Bolt Circle Diameter Round - Inch: 0
Other Features: Used With Sprocket
Pilot Length - Inch: 5.5
Mounting Method: Finished Bore
Nominal Bolt Circle Diameter Round - Millimeter: 0

Pilot Diameter - Millimeter: 317.5
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 12.5
Length Thru Bore - Millimeter: 63.5

Nominal Bolt Circle Diameter Round - Inch: 0
Other Features: Hub Bore Range 5-3/4 To 7 | Used With Instant Split-Sprocket
Pilot Length - Inch: 0
Mounting Method: Minimum Plain Bore
Nominal Bolt Circle Diameter Round - Millimeter: 0