40BS21 3/4

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

Item #100807072

Without Hardened Teeth

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Product Details

Specifications

Finished Bore Size	0.75 in
Hub Length Thru	0.716 in
Pitch Diameter	3.355 in
Outside Dia.	3.6170 in
Sprocket Style	B
Length Through Bore	1 in
Pitch Dia.	3.355 in
Keyway	w/Keyway & Set Screw
Chain Sprocket Number	40
Construction Internal	Solid
No. of Teeth	21
No. of Screws	2
O.D.	3.617 in
Chain No.	40
No. of Teeth Rows Strands	1
Chain Sprocket Pitch	0.5 in
Inch/Metric	Inch
Material Internal Use	Atomized Metals
No. of Strands Across	1
Width Across Teeth	0.284 in
Keyway Size	3/16 x 3/32 in
Pitch Diameter [Min]	3.355 in
Caliper Diameter	3.0334 in
Hub Dia.	2 3/4 in
Key Way Size	3/16 X 3/32 in
Martin No.	40BS21
Outside Dia. [Min]	3.6170 in
Chain Pitch	0.500 in
Hub O.D.	2.75 in
Finished Bore	0.750 in - 3/4 in
Single Strand Tooth Thickness	0.284 in
Hardened Teeth	Without Hardened Teeth
Hub Projection	0.72 in
Set Screw Size	1/4-20 UNC
Bore Type	Finished Bore
Material	Steel
Material External Use	Steel
Set Screw Location	(1) Over Keyway and (1) At 90°
Weight	1.73 LB
EAN or UPC	697950148779