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U.S. Tsubaki Power Transmission, LLC. produces high-quality products for a wide range of industries and applications including roller chains, conveyor chains, sprockets, cable & hose carrier systems, clutches and backstops, and continuous flex cables.

Products > Sprockets > Roller Chain Sprockets > ANSI Single Pitch Sprockets > Tsubaki No. 40 -½” Pitch Sprockets > No. 40 - 1/2" Pitch - Plain Bore Sprockets > Item # 40B39

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No. 40, B Style, .625" plain bore
All dimensions are nominal values and for reference only

Unit of Measure

Specifications | Chain Technical Data

Specifications

Stock Bore Diameter	N/A 0.625 in
Hub Diameter	N/A 3.250 in
LTB	N/A 1.000 in
Style	N/A B
No. Teeth	N/A 39
Outside Diameter	N/A 6.490 in
Pitch Diameter	N/A 6.214 in
Caliper Diameter	N/A 5.896 in
Max. Bore¹	N/A 2.250 in
Weight	N/A 3.760 lb
Tooth Nominal Width	N/A 0.284 in

Chain Technical Data

Pitch	N/A 0.500 in
Chain Size	N/A 40

¹ Dimensions shown allow for standard keyway with set screw at 90°

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Products

Knowledge Center

Specifications

Stock Bore Diameter

Hub Diameter

LTB

Style

No. Teeth

Outside Diameter

Pitch Diameter

Caliper Diameter

Weight

Tooth Nominal Width

Chain Technical Data

Pitch

Chain Size

Link To Knowledge Center