Thk HSR20A Linear Bearing Block 63mm x 70mm x 30mm High on Rail

Description:

The THK HSR20A Linear Bearing Block is a precision recirculating ball linear guide carriage designed for use with THK HSR20 series guide rails. Featuring THK's Four-Way Equal Load design, it provides smooth, low-friction, and high-rigidity linear motion with equal load capacity in radial, reverse-radial, and lateral directions. Commonly installed in CNC machine tools, industrial robots, semiconductor equipment, packaging machinery, and factory automation systems, this bearing block is used by maintenance teams, OEM machine builders, and system integrators for equipment repair, retrofit, expansion, and replacement.

Applications:

The THK HSR20A Linear Bearing Block is widely used in CNC machining centers, robotic positioning systems, semiconductor manufacturing equipment, automated inspection machines, medical devices, packaging machinery, and precision industrial automation where smooth motion, high positioning accuracy, and long service life are required.

Technical Specifications:

• Manufacturer: THK Ltd.
• Brand: THK
• Model: HSR20A
• Product Type: Linear Bearing Block (LM Guide Carriage)
• Series: HSR Global Standard
• Guide Rail Compatibility: THK HSR20 Series Rails
• Block Type: A (Flange Type)
• Guide Type: Precision Recirculating Ball Linear Guide
• Overall Height (M): 30 mm
• Overall Width (W): 63 mm
• Overall Length (L): 74 mm
• Approximate Footprint: 63 mm × 70 mm × 30 mm High (nominal listing dimensions)
• Mounting Dimensions (B × C): 53 mm × 40 mm
• Mounting Thread: M6
• Rail Mounting Hole Pitch: 60 mm
• Basic Dynamic Load Rating: 19.8 kN
• Basic Static Load Rating: 27.4 kN
• Load Design: Four-Way Equal Load
• Material: Hardened Bearing Steel
• Block Weight: Approximately 0.35 kg
• Lubrication: Grease or Oil Lubrication Compatible
• Features: High rigidity, flange mounting design, self-aligning capability, high positioning accuracy, low-friction operation, and long service life.

Common Replacements:

• THK HSR20HA Linear Bearing Block
• THK HSR20CA Linear Bearing Block
• THK SHS20A Linear Bearing Block