25A21

A Plate Reborable Sprocket

Item #100806418

0.38 in Minimum Bore

1.38 in Maximum Bore

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Product Details

Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at an angle to keyseat.

Specifications

Bore Range [Min]	0.38 in
Width Across Teeth	0.11 in
Series	A
Caliper Diameter	1.54 in
Pitch Diameter	1.68 in
Bore Range [Max]	1.38 in
Outside Dia.	1.81 in
Family Name	No. 25 - 1/4 in Pitch - Single - A
Construction Internal	Solid
Inch/Metric	Inch
Chain Pitch	0.250 in
Pitch Diameter [Min]	1.68 in
Hardened Teeth	Without Hardened Teeth
Martin No.	25A21
Material	Steel
Material External Use	Steel
Bore Style	Minimum Bore
Length Through Bore	0.107 in
Bushing Bore Size [Min]	0.375 in
Sprocket Style	A
Chain Sprocket Pitch	0.25 in
Hub Projection	N/A
Outside Dia. [Min]	1.81 in
Stock Bore Size	0.375 in
Hub Dia.	N/A
Bore Size [Min]	0.375 in
Chain No.	25
Chain Sprocket Number	25
Material Internal Use	Carbon Steel
Finished Bore Size	0.375 in
No. of Teeth Rows Strands	1
Bore Type	Finished Bore
Bushing Bore [Min]	0.375 in
No. of Strands Across	1
O.D.	1.809 in
No. of Teeth	21
Single Strand Tooth Thickness	0.11 in
Hub Length Thru	N/A
Pitch Dia.	1.677 in
Weight	0.04 LB
EAN or UPC	697950000046