Boston Gear40B21-1 1/4

40B21-1 1/4

Finished Bore Sprocket

Item #101854170

40 Chain, 21 Tooth, 1.25 in Bore, With Keyway and Setscrew

Boston Gear40B21-1 1/4

Auto Replenish

each One-time purchase

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

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

US Tsubaki Inc. 40BS21 1 1/4

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Product Details

40 Chain, 21 Tooth, 1.25 in Bore, With Keyway and Setscrew

features

Quality design
Superior fatigue resistance
Long operational life
Complete with keyway and setscrew

compliances

0

Specifications

No. of Teeth	21
Sprocket Style	B
Width Across Teeth	0.284 in
Hub Dia.	2 3/4 in
Keyway	w/Keyway & Setscrew
Length Through Bore	1 in
Hardened Teeth	Without Hardened Teeth
Pitch Diameter	3.355 in
No. of Strands Across	1
Inch/Metric	Inch
Finished Bore	1 1/4 in
Hub Length Thru	0.716 in
Material	Steel
Chain No.	40
Outside Dia.	3.617 in
Chain Pitch	0.5 in
Weight	1.24 LB
EAN or UPC	781711360903

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