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Learn how Tsubaki is supporting Meat & Poultry Companies.

During the COVID-19 pandemic, U.S. Tsubaki is offering virtual plant visits & meetings to help with your operational issues. Click here to request virtual assistance.

U.S. Tsubaki RS25 bushed chain is the smallest ANSI roller chain. It is ideal for power transmission in business machines, electro-optical equipment, and precision and general industrial machines where relatively large space is allowed for miniature drives.
These chains can accommodate a large allowable load and are widely used for driving motorcycle cam shafts and power transmission machinery in general.
Unit of Measure


P - Pitch

N/A 0.250 in

B - Bushing Diameter

N/A 0.130 in

W - Width Between Roller Link Plates

N/A 0.125 in

Number of Strands

N/A 1

Standard Type of Pin

N/A Riveted

Average Tensile Strength

N/A 1320 lb

Number of Links per 10 ft

N/A 480

Maximum Allowable Load

N/A 170 lb

Link Plate


N/A 0.039 in


N/A 0.030 in


N/A 0.230 in


N/A 0.230 in

Pin Specifications


N/A 0.090 in


N/A 0.362 in


N/A 0.161 in


N/A 0.201 in
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