Wheels, Axles & Chains
Centaur Service Manual
Ontario Drive & Gear Limited. www.centaur8x8.ca
(519) 662-2840 FAX (519) 662-2421
Supplement Pages
Wheels, Axles & Chains
Centaur Service Manual
Roller Chain Tension
Initial tension for roller chain power transmission is not as critical as for belt transmissions.
Generally, roller chain is used with adequate slack. Slack on the lower side is most
desirable.
If the chain is tightened excessively, chain damage or rapid use of lubricant may result. If
the chain is too loose, damage due to vibration or chain winding, may result.
Fig. 8-6 Improper Chain Tension
Adequate slack (SS) is to be adjusted to 4% of the chain span (AB). For example, if the span
is 800mm (31.5”), slack should be 800mm (31.5”) X 0.04= 32mm (1.26”).
Fig. 8-7 Measuring Chain Slack
WA-14(A)
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