LINK-BELT PU331 pillow block bearing

LINK-BELT PU331 is a reference of pillow block bearing, within Bearing housings. Request a quote for PU331 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The LINK-BELT PU Series 300 pillow blocks are mounted units that combine an inserted bearing with a cast iron housing to secure rotating shafts to a flat base. They are used when the shaft runs parallel to the mounting surface and rigid support with self-alignment is required. MR Accesorios Industriales sells this line for transmission and conveying equipment in plants throughout Argentina.

The designation PU identifies a Series 300 pillow block. The numbers that follow — for example PU314, PU315, PU316, PU318, PU319, PU320, PU322 or PU323 — indicate the size and load capacity of the inserted bearing. The higher the number, the larger the shaft diameter and the more robust the housing.

These pillow blocks appear in belt conveyors, bucket elevators, mixers, mills, screens and packaging lines. In Argentina they are found in food, cement, mining, paper and aggregate processing plants. The cast iron housing withstands dust, moisture and moderate radial loads, and the insert has sealing that retains lubricant and blocks contaminants, which extends service life in demanding environments.

To select the pillow block, start with the shaft diameter and the radial load it will support. Verify that the base has a flat, rigid surface and that the holes match the mounting frame. When mounting, align the shaft with the pillow block and tighten the fastening bolts evenly. The insert usually comes pre-lubricated; in service, check the condition of the sealing and relubricate according to the duty cycle. Slight misalignment is compensated by the bearing's internal clearance, but it does not replace proper leveling.

Series 300 pillow blocks are interchanged between brands by shaft number and base configuration. It can be replaced by another of the same diameter and capacity, respecting the distance between holes and the center height. MR Accesorios Industriales will indicate the compatible alternative within the LINK-BELT line or other brands it sells.

To request a quote, send the full part number of the pillow block by WhatsApp — for example PU314 or PU320 — and the quantity you need. If you do not have it on hand, provide the shaft diameter and a photo of the housing. At MR Accesorios Industriales we will reply shortly with the option that corresponds to your equipment.