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)

Ramsey's Hyperlink drives are customized, fully enclosed chain drive solutions built to deliver the exact loads, speeds and drive ratios needed in your application. All Hyperlink drives feature proprietary, high performance RPV, or Rampower , silent chains. (read more)

Black Ace's Adjustable Torque Limiter Clutches are known for their high durability, long service life, and bulletproof design. These clutches are commonly used to protect roller chain drives that demand repeatable torques in multiple engagements. Torque values are easily adjusted without removal or disassembly. (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)

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

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)

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)

The Zetasassi line of belt and chain tensioners from QTC, improve performance in industrial automation applications by keeping constant tension in belt and chain drive systems. These tensioners are designed to reduce noise, transmit torque more efficiently, decrease wear, with the added benefit of increasing the life of belts and chains. (read more)

New 1,240-Page Handbook of Metric Drive Components from SDP/SI Features Over 4,000 New Products. The process of selecting small METRIC drive components for new prototypes or for production applications just became easier with the publication by Stock Drive Products and Sterling Instrument of a 1,240-page catalog, the "Handbook Of Metric Drive Components, Catalog 785" (read more)