SDP/SI Is an ISO 9001 manufacturer of over 68 Roller Chains, ladders chains, plastic chains, roller chain links, and all types of chains. (read more)

Silent Chains & Inverted Tooth Chains - Ramsey's RPV line of chain and sprockets redefines high performance for inverted tooth chains. Capable of speeds in excess of 7,000 feet/min and loads of 3,000 HP, RPV offers significantly improved performance over all ANSI Standard Chains. (read more)

Duplex Chain is designed for serpentine drives where sprockets must be driven from both sides of the chain. Ramsey manufactures three different series of duplex chain: SC duplex has been around the longest, and is the most economical. (read more)

Emerson Bearing has solutions for all of your roller chain challenges. Emerson represents several world class suppliers of Roller Chain, Engineering Class/Conveyor Chain and Leaf Chain. The majority of chain sales are 'Application Driven'. As a result Emerson can provide unique answers for each category of chain requirement. (read more)

RUD-Kettenfabrik is a world leader in the manufacture and production of high quality innovation chain products. RUD Snow Chains are available in various designs to suit your need.

Six snow chain models with four fitting systems (read more)

SDP/SI Is an ISO 9001 manufacturer of over 540 sprockets, Roller Chain Sprockets, Ladder Chain Sprockets, and.... (read more)

Max-Chain® is recommended for chains and open gears operating in dusty environments. (read more)

Bringing heavy vehicles safely through the winter

Updated models and many detailed improvements

It can be almost impossible to travel during harsh winter weather that is why it is essential to have snow chains- particularly for emergency vehicles, trucks and buses. Many of RUD's leading range of traction chains are designed for vehicles used for clear... (read more)

Black Ace's patented SNUGULATOR® is a revolutionary breakthrough in chain tensioners. These roller chain tensioners greatly increase chain and sprocket life by elimating chain whip. They also reduce roller chain bushing spin and absorb drive vibration creating a smooth, quiet drive. In most cases, self adjusting tensioner units and wear strips are eliminated; greatly reducing costs. (read more)

Two short courses will be offered at MIT this summer for helping professionals dealing with demand driven supply chain and inventory challenges. (read more)