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Tsubaki of Canada 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.

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No. 40, B Style, 1.250" Finished Bore
All dimensions are nominal values and for reference only

Unit of Measure

Specifications | Chain Technical Data | Sprocket Diameters

Specifications

Hub Diameter	N/A 3.250 in
LTB	N/A 1.000 in
Style	N/A B
No. Teeth	N/A 34
Finished Bore Diameter	N/A 1.250 in
Max. Bore¹	N/A 2.250 in
Weight	N/A 3.110 lb
Tooth Nominal Width	N/A 0.284 in
Hardened Teeth	N/A Yes
Industry Equivalent	N/A 40BS34 1 1/4
UPC Code	N/A 097039325730

Chain Technical Data

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

Sprocket Diameters

Outside Diameter	N/A 5.700 in
Pitch Diameter	N/A 5.419 in
Caliper Diameter	N/A 5.107 in

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

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Products

Knowledge Center

Specifications

Hub Diameter

LTB

Style

No. Teeth

Finished Bore Diameter

Weight

Tooth Nominal Width

Hardened Teeth

Industry Equivalent

UPC Code

Chain Technical Data

Pitch

Chain Size

Sprocket Diameters

Outside Diameter

Pitch Diameter

Caliper Diameter

Link To Knowledge Center