40BS21 1 1/8

No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket

Item #100807068

Without Hardened Teeth

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US Tsubaki Inc. 40BS21 1 1/8

No. 40 - 1/2" Pitch - Finished Bore Sprockets

Item #101621260

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Product Details

Specifications

Bore Type	Finished Bore
Construction Internal	Solid
Hub Length Thru	0.716 in
Chain Pitch	0.500 in
Hardened Teeth	Without Hardened Teeth
Single Strand Tooth Thickness	0.284 in
Material External Use	Steel
Material Internal Use	Atomized Metals
Keyway Size	1/4 x 1/8 in
Pitch Dia.	3.355 in
Finished Bore Size	1.125 in
Sprocket Style	B
Keyway	w/Keyway & Set Screw
Hub Dia.	2 3/4 in
Material	Steel
Pitch Diameter	3.355 in
Width Across Teeth	0.284 in
Caliper Diameter	3.0334 in
Set Screw Location	(1) Over Keyway and (1) At 90°
Hub Projection	0.72 in
Finished Bore	1.125 in - 1 1/8 in
No. of Strands Across	1
No. of Teeth	21
Set Screw Size	5/16-18 UNC
Chain Sprocket Number	40
Pitch Diameter [Min]	3.355 in
Inch/Metric	Inch
No. of Screws	2
Length Through Bore	1 in
Chain No.	40
Outside Dia.	3.6170 in
Hub O.D.	2.75 in
O.D.	3.617 in
Chain Sprocket Pitch	0.5 in
No. of Teeth Rows Strands	1
Outside Dia. [Min]	3.6170 in
Martin No.	40BS21
Key Way Size	1/4 X 1/8 in
Weight	1.55 LB
EAN or UPC	697950005164