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: 311.15
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 12.75
Length Thru Bore - Millimeter: 73.025

Nominal Bolt Circle Diameter Round - Inch: 9.25
Other Features: Used With Fan Rotor - Pulley - Plate Sprocket - Impeller - Agitator
Pilot Length - Inch: 2.25
Mounting Method: Bushed
Nominal Bolt Circle Diameter Round - Millimeter: 234.95

Pilot Diameter - Millimeter: 266.7
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 15.5
Length Thru Bore - Millimeter: 127

Nominal Bolt Circle Diameter Round - Inch: 13
Other Features: Hub Bore Range 4-1/16 To 7 | Type D Sprocket | 6 Bolt Hole
Pilot Length - Inch: 2.75
Mounting Method: Minimum Plain Bore
Nominal Bolt Circle Diameter Round - Millimeter: 330.2

Pilot Diameter - Millimeter: 476.25
Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 19.5
Length Thru Bore - Millimeter: 304.8

Nominal Bolt Circle Diameter Round - Inch: 15
Other Features: 1-1/4-7 Tapped Hole | 5 Tapped Hole | Used With Plate Steel Sprocket
Pilot Length - Inch: 7.5
Mounting Method: Bushed
Nominal Bolt Circle Diameter Round - Millimeter: 381