Sealed solid-lubricant bearings are installed with oil-filled polymers which, while having some of the properties of solids, actually lubricates them with a film of oil. Oil-filled polymers can contain approximately twice the amount of oil than most greases thereby making more oil available for lubrication. The bearings work well in harsh manufacturing environments, are available from 1/8 to 1-in. ID, and from metric 10 to 50mm ID. Most sizes come in chrome steel or stainless steel.

Sapporo Precision Bearings USA, 1193 Tallevast Rd., Sarasota, FL 34243, (941) 358-1655, www.info.hotims.com/18361-280