Split or Solid Description: One Piece Split
Bore Threaded: Metric
Component: Shaft Collar
Inch - Metric: Metric
Outside Diameter - Inch: 2.252

Width - Millimeter: 15
Bore - Millimeter: 31
Material: Steel
Other Features: Wax Impregnated Black Oxide Finish | Blackened Alloy Steel Socket Head Cap Screw
Outside Diameter - Millimeter: 57.2

Bore Profile: Finished Bore
Component: Hub
Coupling Type: Jaw Coupling
Inch - Metric: Metric
Outside Diameter - Inch: 3.98

Material: Magnesium Alloy
Other Features: Components May or May Not Intermix Among Brands | Corrosion Resistant | Neoprene Insert
Length Thru Bore - Millimeter: 38.608
Mounting Method: Set Screw
Hub Diameter - Millimeter: 77.47

Bore Profile: Finished Bore
Component: Hub
Coupling Type: Jaw Coupling
Inch - Metric: Metric
Outside Diameter - Inch: 4.8

Material: Magnesium Alloy
Other Features: Components May or May Not Intermix Among Brands | Corrosion Resistant | Neoprene Insert
Length Thru Bore - Millimeter: 41.402
Mounting Method: Set Screw
Hub Diameter - Millimeter: 101.6