820A21B
Description
820A21B ROLLER CHAIN SPROCKET ; 800 SERIES A TYPE HUB
Part # 820A21B
BDI # 625514
Features
Bore Profile:
Round
Pitch Diameter - Inch:
5.089
Pitch - Millimeter:
38.1
Inch - Metric:
Inch
Material:
Cast Iron
Outside Diameter - Inch:
5.12
Other Features:
Block Body
Pitch Diameter - Millimeter:
129.261
Modular - Flat Top Size:
815 | 820 | 831 | 4705 | 4706 | 4707 | 5705 | 5706 | SSB
Mounting Method:
Rough Bore
Features
Bore Profile:
Round
Pitch Diameter - Inch:
5.089
Pitch - Millimeter:
38.1
Inch - Metric:
Inch
Material:
Cast Iron
Outside Diameter - Inch:
5.12
Other Features:
Arm Body
Pitch Diameter - Millimeter:
129.261
Modular - Flat Top Size:
815 | 820 | 831 | 4705 | 4706 | 4707 | 5705 | 5706 | SSB
Mounting Method:
Rough Bore
881C21 MPB 3/4
Description
881C21 ROLLER CHAIN SPROCKET ; ROUGH; 3/4" ID X 130.5MM OD X 1-1/4" WD
Part # 881C21
BDI # 625635
Features
Bore Profile:
Round
Pitch Diameter - Inch:
5.089
Pitch - Millimeter:
38.1
Inch - Metric:
Inch
Material:
Cast Iron
Outside Diameter - Inch:
5.12
Outside Diameter - Millimeter:
130.048
Pitch Diameter - Millimeter:
129.261
Modular - Flat Top Size:
881
Mounting Method:
Rough Bore
821-21T RB 1IN
Description
821-21T RB 1" SPROCKET ; 401-308-2 NON-SPLIT CAST-IRON
Part # 9167675
BDI # 18141860
Features
Bore Profile:
Round
Pitch Diameter - Inch:
5.089
Pitch - Millimeter:
38.1
Inch - Metric:
Inch
Material:
Cast Iron
Outside Diameter - Inch:
5.12
Other Features:
Arm Body | Idler Bores are Slightly Oversized
Pitch Diameter - Millimeter:
129.261
Modular - Flat Top Size:
821 | 815 H
Mounting Method:
Idler Bore
NS7700-21T 3-1/2IN SQ
Description
NS7700-21T 3-1/2 SQ SPROCKET ; MOLDED SPLIT
Part # 9121100
BDI # 19435146
Features
Bore Profile:
Square
Pitch Diameter - Inch:
6.71
Pitch - Millimeter:
25.4
Inch - Metric:
Inch
Material:
Thermoplastic
Outside Diameter - Inch:
6.72
Outside Diameter - Millimeter:
170.688
Pitch Diameter - Millimeter:
170.434
Modular - Flat Top Size:
770 | 1050 | 1055 | 1060 | 7703 | 7705 | 7706 | 7708 | 7743
Mounting Method:
Finished Bore