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Sprockets > Axle Sprockets and Hubs

Axle Sprockets Hubs

Axle Sprocket Hubs
Our axle sprocket hubs are designed to fit specific sprocket mounting patterns: Group 1 (G1) hubs fit sprockets with the G1 mounting pattern, Group 2 (G2) hubs fit sprockets with the G2 mounting pattern, Group 3 (G3) hubs fit sprockets with the G3 mounting pattern. We sell custom-made sprockets for practically all chain sizes which fit these hubs. You can get a price quote and start the order process on our Custom-Made Sprockets page.
Select Axle Sprocket Hub Type
G1 Axle Sprocket Hubs G2 Axle Sprocket Hubs G3 Axle Sprocket Hubs
G1 Axle Sprocket Hubs

Sprocket Hub for 5/8" Axles (G1)
Zinc plated steel sprocket hub. 5/8" ID bore. 3/16" keyway. Four 3/8" ID holes with 2.875″ bolt circle diameter and four 1/4" ID holes with 3.228″ bolt circle diameter. 4" outside diameter. 3/4" overall width. Two setscrews (setscrews included).
Dimensions
Item # HUB-201058		 $19.95


Sprocket Hub for 3/4" Axles (G1)
Zinc plated steel sprocket hub. 3/4" ID bore. 3/16" keyway. Four 3/8" ID holes with 2.875″ bolt circle diameter and four 1/4" ID holes with 3.228″ bolt circle diameter. 4" outside diameter. 3/4" overall width. Two setscrews (setscrews included).
Dimensions
Item # HUB-201034		 $19.95


Sprocket Hub Hardware Kit for 5/8" and 3/4" Axles
Four 3/8" OD x 3/4" long socket head bolts with lock nuts. One 3/16" x 3/16" x 3/4" key pin. Compatible with item # HUB-201058 and HUB-201034 listed above.
Item # HDW-2875-316		 $2.95


Stainless Steel Sprocket Hub Hardware Kit for 5/8" and 3/4" Axles
Four 3/8" OD x 3/4" long stainless steel socket head bolts with stainless steel lock nuts. One steel 3/16" x 3/16" x 3/4" key pin. Compatible with item # HUB-201058 and HUB-201034 listed above.
Item # HDW-2875SS-316		 $4.95


3/16" x 3/16" x 3/4" Key Pin
3/16" x 3/16" x 3/4" steel key pin for sprocket hubs with 3/16" keyway. Compatible with item # HUB-201058 and HUB-201034 listed above.
Item # KEY-316X34

More Key Pins

 $0.95


Sprocket Hub for 1" Axles (G1)
Zinc plated steel sprocket hub. 1" ID bore. 1/4" keyway. Four 3/8" ID holes with 2.875″ bolt circle diameter and four 1/4" ID holes with 3.228″ bolt circle diameter. 4" outside diameter. 3/4" overall width. Two setscrews (setscrews included).
Dimensions
Item # HUB-201100		 $19.95


Sprocket Hub for 1-1/4" Axles (G1)
Zinc plated steel sprocket hub. 1-1/4" ID bore. 1/4" keyway. Four 3/8" ID holes with 2.875″ bolt circle diameter and four 1/4" ID holes with 3.228″ bolt circle diameter. 4" outside diameter. 3/4" overall width. Two setscrews (setscrews included).
Dimensions
Item # HUB-201114		 $19.95


Sprocket Hub Hardware Kit for 1" and 1-1/4" Axles
Four 3/8" OD x 3/4" long socket head bolts with lock nuts. One 1/4" x 1/4" x 1-1/4" key pin. Compatible with item # HUB-201100 and HUB-201114 listed above.
Item # HDW-2875-104		 $2.95


Stainless Steel Sprocket Hub Hardware Kit for 1" and 1-1/4" Axles
Four 3/8" OD x 3/4" long stainless steel socket head bolts with stainless steel lock nuts. One steel 1/4" x 1/4" x 1-1/4" key pin. Compatible with item # HUB-201100 and HUB-201114 listed above.
Item # HDW-2875SS-104		 $4.95


1/4" x 1/4" x 3/4" Key Pin
1/4" x 1/4" x 3/4" steel key pin for sprocket hubs with 1/4" keyway. Compatible with item # HUB-201100 and HUB-201114 listed above.
Item # KEY-104X34

More Key Pins

 $0.95


Set Screw for G1 Sprocket Hubs
Set screw for G1 axle sprocket hubs. Compatible with item # HUB-201058, HUB-201034, HUB-201100, and HUB-201114 listed above.
Item # HDW-2860		 $0.25
G2 Axle Sprocket Hubs

Sprocket Hub for 5/8" Axles (G2)
Zinc plated steel sprocket hub. 5/8" ID bore. 3/16" keyway. Three 1/4" ID holes with 1.687″ bolt circle diameter. 2-1/8" outside diameter. 0.6" overall width. One setscrew (setscrew included).
Item # HUB-302058		 $11.95


Sprocket Hub for 3/4" Axles (G2)
Zinc plated steel sprocket hub. 3/4" ID bore. 3/16" keyway. Three 1/4" ID holes with 1.687″ bolt circle diameter. 2-1/8" outside diameter. 0.6" overall width. One setscrew (setscrew included).
Item # HUB-302034		 $11.95


Hardware Kit for G2 Sprocket Hubs
Three 1/4" OD x 1-1/4" long socket head bolts with lock nuts. One 3/16" x 3/16" x 3/4" key pin. Compatible with item # HUB-302058 and HUB-302034 listed above.
Item # HDW-2870		 $2.49


3/16" x 3/16" x 3/4" Key Pin
3/16" x 3/16" x 3/4" steel key pin for sprocket hubs with 3/16" keyway. Compatible with item # HUB-302058 and HUB-302034 listed above.
Item # KEY-316X34

More Key Pins

 $0.95


Set Screw for G2 Sprocket Hubs
Set screw for G2 axle sprocket hubs. Compatible with item # HUB-302058 and HUB-302034 listed above.
Item # HDW-2850		 $0.25
 
G3 Axle Sprocket Hubs

Sprocket Hub for 1" Axles (G3)
Zinc plated steel sprocket hub. 1" ID bore. 1/4" keyway. Three 1/4" ID holes with 1.75″ bolt circle diameter. 2-1/4" outside diameter. 1-3/4" shoulder. 0.6" overall width. One setscrew (setscrew included).
Item # HUB-302010		 $11.95


Hardware Kit for G3 Sprocket Hubs
Three 1/4" OD x 1-1/4" long socket head bolts with lock nuts. One 1/4" x 1/4" x 3/4" key pin. Compatible with item # HUB-302010 listed above.
Item # HDW-2872		 $2.49


1/4" x 1/4" x 3/4" Key Pin
1/4" x 1/4" x 3/4" steel key pin for sprocket hubs with 1/4" keyway. Compatible with item # HUB-302010 listed above.
Item # KEY-104X34

More Key Pins

 $0.95


Set Screw for G3 Sprocket Hubs
Set screw for G3 axle sprocket hubs. Compatible with item # HUB-302010 listed above.
Item # HDW-2850 		$0.25


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