KR Series Cam Follower Roller Bearing

KR Series Cam Follower Roller Bearing

Product descriptions

The KR Series Cam Follower is a stud-type needle roller bearing designed for direct, secure mounting onto machine components. It serves as a highly efficient and reliable roller for cam mechanisms, track guidance, and linear motion systems.

Integrated Design and Construction:

This series features an integrated stud (or pin) that acts as the inner raceway, eliminating the need for a separate shaft or bolt and significantly simplifying installation. The bearing is engineered for demanding conditions, featuring a thick-walled outer ring and a full complement of needle rollers.

Key Features and Advantages

The KR Series is engineered for durability and precision, offering a range of benefits for demanding mechanical designs:

Integrated Stud for Easy Mounting: The defining stud-type design combines the axle and inner race into a single component. This allows for simple, space-saving installation directly into a tapped hole on a machine lever or arm, secured with a nut.

High Radial Load Capacity: Utilizing a full complement or caged set of needle rollers, the KR series provides a large contact area. This enables it to handle high radial loads and shock effectively within a compact design envelope.

Robust Outer Ring: The outer ring features a thick wall. This design minimizes deformation under heavy rolling loads, ensuring a consistent contact patch and preventing damage from the high stresses common in cam-following applications.

Crowned Outer Ring Profile: Most KR series followers feature a slightly crowned (convex) outer ring surface. This profile helps to reduce edge stresses by distributing the load more evenly if there is minor misalignment between the follower and the track, significantly increasing the bearing's service life.

Sealed for Longevity (KR..PP): Many KR series followers come with integrated contact seals (designated KR..PP). These seals provide excellent protection against contaminants like dust and moisture while retaining internal grease, ensuring long-term, maintenance-free operation.

Versatile Mounting Options: The stud head often includes a hexagonal socket or a screwdriver slot. This feature allows the stud to be held firmly in place while the retaining nut is tightened, preventing unwanted rotation and ensuring proper installation torque.

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