The usual fitting precautions for bait journals still apply to

21st September 1962, Page 241

21st September 1962

Page 241

Page 241, 21st September 1962 — The usual fitting precautions for bait journals still apply to

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roller bearings. However, most larallel roller bearings can easily be separated as the outer or inner ring will slide off the rest of the assembly. These parts are not interchangeable between bearings and you must take care to keep the parts of one bearing together. If they do become mixed up then it is possible to re-match inner and outer rings by pairing up those with the same etched serial number. For example, those marked K31 will go together.

The usual assembly procedure is to fit the outer ring in the housing and mount the inner, cage and rollers assembly on the shaft. The utmost care is then needed to bring the two parts correctly together. The weight of the shaft or any other part must never be taken by the rollers until they are fully assembled in their rings. The rollers must also be started absolutely squarely into the ring and only allowed to slide into position. Any force will only lead to scoring of the tracks and the bearing at best will be noisy.

Finally, the lips of roller bearings are particularly easy to fracture. So avoid any force when either removing or fitting roller bearings.

Most bearing failures are due to bad working conditions. These notes will help you to enjoy long and trouble-free bearing life. Ask for 12,4M Bearings to make sure.