Inch - Metric: Metric
Outside Diameter - Inch: 4.409
Outside Diameter - Millimeter: 112
Inside Diameter - Millimeter: 80

Chain Pitch - Inch: 1
Chain Size: 80
Chain Pitch - Millimeter: 25.4
Chain Type: Roller Chain
Bearing Type: Ball Bearing

Inch - Metric: Inch
Material: Steel
Outside Diameter - Inch: 4.347
Length Thru Bore - Millimeter: 15.494
Length Thru Bore - Inch: 0.61

Inch - Metric: Inch
Outside Diameter - Inch: 4.375
Outside Diameter - Millimeter: 111.125
Inside Diameter - Millimeter: 80.696

Thread Size: 3.34-12
Inch - Metric: Inch
Outside Diameter - Inch: 4.411
Outside Diameter - Millimeter: 112.039
Threads per Inch: 12

Nominal Thickness - Inch: 0.635
Nominal Thickness - Millimeter: 16.129

Inch - Metric: Inch
Outside Diameter - Inch: 4.391
Outside Diameter - Millimeter: 111.531
Other Features: Face Dia 3.844 | 19 Tangs
Inside Diameter - Millimeter: 80.696