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Call: 800.323.7790 | |  
The Union Chain Division of U.S. Tsubaki is the leading manufacturer of mining chains that are used in underground, above ground, and preparation plant applications. We currently manufacture many different sizes of mine chains for several major OEMs. This relationship enables us to design upgrades for the chain in the mining equipment to meet the ever-changing needs of the industry. We use alloy-grade steels, heat-treated to precise specifications and assembled with the heavy press-fits required to withstand the punishment of today's more powerful, high production mining equipment. Our complete line of mining chains includes: Shuttle Car Chain, Feeder Breaker Chain, Tram Drive Chain, Wash Box Chain, Drop Forged Rivetless Chain, and Jig Washer Chain. To better service your industry, nearly all of the mining chains are in-stock and ready for immediate shipment. We also manufacture made-to-order chains and attachment configurations for your individual requirements.
Dimensions are subject to change. Contact Union Chain to obtain certified prints for design and construction.

All dimensions are nominal values and for reference only

This chain is normally stocked.
Unit of Measure

Specifications

Drawing Number

N/A 21752

Pitch

N/A 4.100 in

Style

N/A Straight

B+C - Overall Chain Width

N/A 4.310 in

B - Head to CL Chain Width

N/A 1.970 in

C - End to CL Chain Width

N/A 2.340 in

Approx. Weight

N/A 12.500 lb/ft

Pin Specifications

G - Pin Diameter

N/A 0.940 in

Pin Material

N/A Alloy Heat-treated

Bushing Specifications

D - Bushing Diameter

N/A 1.750 in

L

N/A 0.880 in

Bushing Material

N/A Alloy Heat-treated

Sidebar Specifications

H - Sidebar Height

N/A 1.750 in

T - Sidebar Thickness

N/A 0.500 in

Sidebar Material

N/A Carbon Heat-treated

Attachment Specifications

Attachments Space

N/A Ev. 6th

I

N/A 3.000 in

J

N/A 2.000 in

K

N/A 0.670 in
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