SEALMASTER AR-3-18 insert bearing

SEALMASTER AR-3-18 belongs to insert bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for AR-3-18 and any equivalents.

The SEALMASTER AR series is a ball bearing built with an extended inner ring, made to seat inside split or solid housings. It fits equipment where a rotating shaft needs support along with alignment and sealing. MR Industrial Accessories LLC supplies this line to industrial plants throughout the United States and in several Latin American countries.

Reading the code is the first step in selection. The letters AR come first, then numbers that work as a size reference and point to sealing variants. AR-1-2, AR-1-14, AR-2-1 and AR-2-2 are four examples of distinct sizes. The trailing digits separate one seal and tolerance configuration from another. The most reliable way to order is to copy the full part number printed on the nameplate or stamped on the housing.

Typical applications include conveyors, mixers, fans, pumps and agricultural machinery, and they also show up in grain handling, meatpacking and metalworking plants. Because the unit mounts quickly onto a shaft and seats into a split housing, maintenance crews can service equipment that is difficult to reach without pulling the whole assembly apart.

When choosing a unit, confirm three things: the shaft diameter, the sealing style (contact or labyrinth) and the internal clearance. Installation calls for clean work, correct alignment and adequate lubrication. In dusty or humid areas, a seal with more protection is the better choice. Depending on the model, the bearing locks to the shaft with set screws or an adapter sleeve. Following the manufacturer's mounting instructions helps prevent premature failure.

Interchange between brands is judged by dimensions and load capacity, never by the part number alone. To replace an insert bearing made by another manufacturer, line up the bore, the outside diameter and the width. Our team can point you to a compatible alternative.

To get a quote, send the exact part number you need by WhatsApp or email, for example AR-2-1 or AR-2-08. The team answers promptly and can suggest equivalents or help you choose the right unit.