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20B-2 Connecting Link - Donghua Brand
Transmission Products

British standard Donghua brand connecting link 31.75mm (1.1/4" inch) pitch

Donghua is one of the leading manufacturers of drive chains, leaf chains, conveyor chains, gears and sprockets. Producing over 30 million metres of finished chain per year, Donghua chain has been sold in the UK for over 20 years under well known brand names, however, since 2010 the chain is now available directly in the UK.

Donghua is one of the world's largest manufacturers of drive chains, leaf chains, conveyor chains, gears and sprockets. Donghua has the widest product range in this sector with over 10,000 specifications. They design, manufacture and assemble all the component parts in their chain enabling them to guarantee the same high standard from start to finish. Their focus is delivering consistently high technical quality, logistical dependability and strong customer service - in short, ensuring our customers are both satisfied and successful.

Donghua has internationally recognised quality certificates from ISO 9001:2000 QM certification through ISO 14001 (which documents the sustainability and environmental compatibility of production and waste disposal processes) to the ISO/TS 16949 quality requirements for the automotive industry. Other specialist certificates from the American Petroleum Institute, the Certificate of Conformity for Measurement Management Systems and the Export Inspection Certificate prove that Donghua are more than capable of satisfying the quality benchmarks laid down by the industry. Donghua only has one standard. The Best.

Pitch P: 31.75mm (1.1/4" inch)
Roller dia d1: 19.05mm
Width between inner plates b1: 19.56mm
Pin diameter d2: 10.19mm
Pin length L: 77.8mm
Pin length Lc: 81.5mm
Inner plate depth h2: 26.40mm
Plate thickness t/T: 4.5/3.5mm
Transverse pitch Pt: 36.45mm
Ultimate tensile strength Q: 170.0kn/38636lb
Average tensile strength Qo: 211.2kn

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Donghua Chain Group

Donghua is one of the leading manufacturers of drive chains, leaf chains, conveyor chains, gears and sprockets. Producing over 30 million metres of finished chain per year.

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