Bore Profile: Round
Pitch Diameter - Inch: 5.796
Pitch - Millimeter: 38.1
Inch - Metric: Inch
Material: Thermoplastic

Outside Diameter - Inch: 5.8
Other Features: Idler Bores are Slightly Oversized
Pitch Diameter - Millimeter: 147.218
Modular - Flat Top Size: 279 | 828 | 878 | 879 | 880
Mounting Method: Idler Bore

Bore Profile: Round
Pitch Diameter - Inch: 1.36
Pitch - Millimeter: 15
Inch - Metric: Inch
Material: Thermoplastic

Outside Diameter - Inch: 1.31
Other Features: 1500 Series Molded Non-Split
Pitch Diameter - Millimeter: 34.544
Modular - Flat Top Size: 1503 | 1505 | 1506
Mounting Method: Idler Bore

Bore Profile: Round
Pitch Diameter - Inch: 1.364
Pitch - Millimeter: 15
Inch - Metric: Inch
Material: Thermoplastic

Outside Diameter - Inch: 1.31
Outside Diameter - Millimeter: 33.274
Pitch Diameter - Millimeter: 34.65
Modular - Flat Top Size: 1503 | 1505 | 1506
Mounting Method: Finished Bore

Bore Profile: Round
Pitch Diameter - Inch: 8.072
Pitch - Millimeter: 40.132
Inch - Metric: Inch
Material: Cast Iron

Outside Diameter - Inch: 8.28
Outside Diameter - Millimeter: 210.312
Pitch Diameter - Millimeter: 205.029
Modular - Flat Top Size: 1755
Mounting Method: Finished Bore

Bore Profile: Round
Pitch Diameter - Inch: 5.56
Pitch - Millimeter: 38.1
Inch - Metric: Inch
Material: Thermoplastic

Outside Diameter - Inch: 5.59
Other Features: 5/16-18 Standard Set Screw at 90 Deg
Pitch Diameter - Millimeter: 141.224
Modular - Flat Top Size: 60 | 66 | 810 | 812 | 815 | 881
Mounting Method: Finished Bore