SKF PTB187-1250-250-J1S friction bushing

SKF PTB187-1250-250-J1S belongs to friction bushing, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for PTB187-1250-250-J1S and any equivalents.

SKF PTB series friction bushings sit between a shaft and a housing to cut friction and wear. They handle radial loads in rotating or oscillating motion and can run self-lubricated or with lubrication. Industrial and automotive equipment that needs a compact, low-maintenance solution is where they fit best. MR supplies this line alongside its power transmission and support components.

The part number tells you what you are holding. PTB is the friction bushing type. After the hyphen, the first figure is the inner diameter (d), the next is the outer diameter (D), and the last is the length (B), all in millimeters. The J and S suffixes cover design details such as material and how the lubrication grooves or channels are arranged. Reading the code this way lets you confirm the main dimensions before you order.

You will find these bushings across automotive, metallurgical, food and agricultural operations. They appear in pumps, compressors, conveyor belts, machine tools, bottling equipment and lifting systems. Their job is to carry radial loads and permit relative movement between parts, which lowers wear and noise. Where speeds are low, loads are moderate and space is tight, they are a practical and economical substitute for bearings.

When choosing a PTB bushing, start with the radial load, the sliding speed and the environment. The inner diameter has to match the shaft and the outer diameter has to match the housing, within the recommended tolerances. Lubrication matters: certain models have channels that spread the lubricant. Align the parts precisely during assembly so wear stays even, and add protection if the area is dirty. Careful installation pays off in service life.

On interchangeability, SKF PTB friction bushings can be swapped for other makers' products that use the same dimensional designation (inner diameter, outer diameter and length). Check material, lubrication type and tolerances first, because they can differ from brand to brand. If anything is unclear, ask our technical team to confirm compatibility.

To get a quote, send the complete part number by WhatsApp to MR. The team will help you and return the quote promptly. We work with leading brands and cover industrial requirements.