THK Co., Ltd. HSR15B Precision Linear Bearing Way Set

The THK HSR15B Precision Linear Bearing Way Set is a complete linear motion assembly pairing a 9-inch HSR15 guide rail with an HSR15B flange-type bearing block to deliver smooth, high-precision motion with high rigidity and a compact flange design. Built around THK’s Four-Way Equal Load technology, it supports equal radial, reverse-radial, and lateral loads for consistent performance in compact spaces, making it a common choice for CNC machines, robotic positioning systems, semiconductor equipment, optical inspection devices, medical devices, automated assembly lines, packaging equipment, and factory automation—ideal for maintenance teams, OEM builders, and system integrators engaged in repair, retrofit, expansion, or replacement. Key dimensions include a 9 in (228.6 mm) guide rail length, 15 mm rail width; bearing block HSR15B with 24 mm high, 47 mm wide, 56.6 mm long; mounting footprint 38 × 30 mm; rail mounting hole pitch 60 mm; mounting holes 4.5 mm. The assembly provides a basic dynamic load rating of 10.9 kN and a basic static load rating of 15.7 kN; it uses hardened bearing steel and is compatible with grease or oil lubrication with PB1021B grease nipple, and features high rigidity, a compact flange design, self-adjusting capability, high positioning accuracy, low-friction operation, and long service life.