Thk HSR30B Linear Ball Bearing Block Slide

Description:

The THK HSR30B Linear Ball Bearing Block Slide is a precision recirculating ball linear guide block designed for use with THK HSR30 series linear guide rails in high-load, high-accuracy linear motion systems. Featuring a bottom-mount flange configuration and THK's four-way equal load design, it provides smooth, low-friction travel, excellent rigidity, and reliable positioning accuracy under loads applied from any direction. Commonly installed in CNC machining centers, industrial robots, semiconductor equipment, packaging machinery, precision inspection systems, and factory automation equipment, this linear bearing block is used by maintenance teams, OEM machine builders, and system integrators for equipment repair, retrofit, expansion, and replacement.

Applications:

The THK HSR30B is commonly used in CNC milling machines, machining centers, automated assembly lines, pick-and-place systems, semiconductor manufacturing equipment, medical devices, material handling equipment, and precision positioning systems. Its four-row recirculating ball design provides high rigidity, equal load capacity in radial, reverse radial, and lateral directions, making it ideal for demanding industrial applications requiring smooth motion, long service life, and high repeatability.

Technical Specifications:

• Manufacturer Part Number (MPN): HSR30B
• Manufacturer: THK Ltd.
• Product Type: Linear Ball Bearing Block
• Series: HSR Global Standard LM Guide
• Block Type: B (Bottom Mount Flange Type)
• Guide Type: Recirculating Ball Linear Motion Guide
• Compatible Rail Size: 30 mm
• Block Width: 90 mm
• Block Height: 42 mm
• Block Length: 98 mm
• Mounting Hole Spacing (B × C): 72 × 52 mm
• Rail Mounting Hole Pitch: 80 mm
• Dynamic Load Rating: 40.5 kN
• Static Load Rating: 53.7 kN
• Block Weight: Approximately 1.1 kg
• Rail Weight: Approximately 4.8 kg/m
• Material: Bearing Steel
• Lubrication: Grease or Oil
• Features: Four-way equal load design, bottom surface mounting, precision-ground raceways, high rigidity, interchangeable design, low-friction operation, and high positioning accuracy.

Common Replacements:

• THK HSR30CB
• THK HSR30HB
• THK HSR30LB