TECDOS - Chain Guides

Radial forces always occur when a wheel turns, which tend to cause the chain to climb off the wheel. As chain wear increases, these radial forces also increase, and the chain can climb so far that it finally jumps over the tip of a tooth. High peak stresses can be generated in a chain when it jumps over, which can lead to the chain breaking.


A chain guide prevents the chain from climbing and jumping off the wheel. Chain guides are always required when the load on a chain lies on only one side of the wheel, and other side is under little or no load. If a non-loaded chain strand runs onto a wheel twisted, the chain guide or straightener has to untwist it reliably, and guide it faultlessly onto the wheel. When a nonloaded chain strand runs off a wheel, the stripper has to release the chain from the wheel, and ensure that the chain runs off faultlessly.

A chain guide is always needed, unless it can be ensured that a load is continuously present on both sides of the wheel, and the chain is not unloaded over the wheel. The radiuses of the guides are a function of the dimensions of the chains and wheels, and are calculated and specified by RUD. The external contour of the chain guide can be adapted to meet the customer's requirements. According on local conditions, lugs, brackets or holes can be provided for fixing the guide over the wheel.

TECDOS chain guides:

• In order to avoid climbing of the chain
• Lower wear, higher lifetime
• Solid, hardened design
• Dimensional proposals by RUD
• Rounded leading edges

TECDOS stripper with detwister:

• Trouble-free stripping of the chain from the pockets
• effects on horizontal and vertical links to guarantee a perfect entry of the chain
• danger of damage to the chain / guide will be reduced

Recommendation:A chain guide with stripper should be fitted on every chain wheel for safety reasons.