BOSTON GEAR
BOSTON GEAR D50B21
Roller Chain Sprocket; 50-2 Chain; 21 Teeth; 2 Row of Teeth; No Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material
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MARTIN SPROCKET & GR
MARTIN SPROCKET & GR D50B21H
Roller Chain Sprocket; 50-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Rough Bore Mount; No Bushing; 5/8" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material
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LINN GEAR
LINN GEAR 50-2TLB21H
Roller Chain Sprocket; 50-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Bushed Mount; 2012 Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material
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IWIS DRIVE SYSTEMS
IWIS DRIVE SYSTEMS D50BTL21
Roller Chain Sprocket; 50-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Bushed Mount; 2012 Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material
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MARTIN SPROCKET & GR
MARTIN SPROCKET & GR D50P21H
Roller Chain Sprocket; 50-2 Chain; 21 Teeth; 2 Row of Teeth; Hardened Teeth; 4.522" Outside Diameter; 4.194" Pitch Diameter; B-Hub One Side; Bushed Mount; P1 Bushing; 5/8" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material
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