Tightener Roll Ring (906–920)

Caution
Product Description
Tensioner that clamped onto chains. Automatically adds tension to drive chains, absorbs vibration, and provides smooth rotation.
[Features]
· The roll ring is a drive tensioner for chains created based on a new concept.
· Automatically adds tension to drive chains, absorbs vibration, and provides smooth rotation.
· Designed based on rotation principles and elasticity principles, so it maintains smooth chain drive with little tension force.
· Differs from conventional pensioners in that mounting stays and flanges are not required, nor is any machining of screw holes and the like.
· Can be mounted by hand in a few seconds, with no tools required. Can also be adjusted after mounting.
· Made from high-performance elastic materials. Absorbs chain vibration and provides smooth rotation, reducing noise and improving drive mechanism life without damaging chains, sprockets, springs, etc.
· Absolutely no lubrication or other such maintenance required.
· Can handle both forward and reverse drive directions.
· Can be mounted in both vertical and horizontal directions.
· Usable in a wide range of temperatures. Can also be used in places exposed to water and dusty places, so it is usable for machinery in any field.
Product Specification
Main body: special elasticity plastic
Drawing

Specifications Table

(Note) Please use the roll ring within this range of deformation.
Usage Example
Usage Examples / Instructions
· The lifespan of the roll ring is equivalent to that of the chain. As a reference, we recommend replacing it at the same time as the chain replacement.
· Please mount the roll ring near the point of tangency on the pitch circle diameter of the driving and driven sprockets.

Roll Ring Usage Guide
■Selection procedure for installation on existing equipment
[STEP1] Check the chain size
[STEP2] Measure the maximum distance between chains
[STEP3] Check for interference with the sprocket



■Selection procedure for new installations
[STEP1] Check whether use is possible based on the amount of roll ring deformation
[STEP2] Check for interference with the sprocket
[STEP3] Make adjustments if there is interference with the sprocket

