Tightener Roll Ring (906–920)

Caution
Product Description
[Features]
· The Roll Ring is a drive tensioner for chains, born from a new concept.
· It automatically applies tension to the drive chain and absorbs vibrations.
· Designed based on rotating and elasticity principles, it maintains smooth chain operation with minimal tension force.
· Unlike conventional tensioners, there is no need for mounting stays or flanges, and no processing such as drilling screw holes is required.
· Mounting can be done by hand in just a few seconds, with no tools required. Additionally, no adjustment is needed after installation.
· Made from high-performance elastic materials, it absorbs chain vibration and ensures smooth rotation, reducing noise and extending the lifespan of the chain, sprocket, bearings, and other drive components without causing damage.
· No need for maintenance such as lubrication.
· Supports drive in both forward rotation and reverse rotation.
· Supports both horizontal and vertical mounting directions.
· With a wide operating temperature range, it can be used in locations exposed to water or with a lot of dust, making it suitable for machines in a wide variety of fields.
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

