THK HSR25LB1SS(GK) Linear Guide Bearing Block

Description:

The THK HSR25LB1SS(GK) Linear Guide Bearing Block is a long flange-type recirculating ball linear guide carriage designed for use with THK HSR25 series linear guide rails. As part of THK's Global Standard (GK) interchangeable series, it features four-way equal load capability, precision-ground raceways, and SS contamination protection with end seals, side seals, and inner seals for reliable operation in demanding industrial environments. Commonly installed in CNC machine tools, industrial robots, semiconductor equipment, packaging machinery, and automated manufacturing 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 HSR25LB1SS(GK) Linear Guide Bearing Block is widely used in CNC machining centers, precision automation equipment, robotic positioning systems, semiconductor manufacturing machinery, inspection systems, packaging equipment, and material handling applications where high load capacity, smooth linear motion, and long service life are essential. Its long flange design provides increased rigidity and improved moment load capacity for demanding linear motion applications.

Technical Specifications:

• Manufacturer: THK Ltd.
• Brand: THK
• Manufacturer Part Number: HSR25LB1SS(GK)
• Product Type: Linear Guide Bearing Block
• Series: HSR Global Standard (GK)
• Block Style: LB (Long Flange Type)
• Compatible Rail Size: 25 mm
• Compatible Rail Width: 23 mm
• Mounting Style: Flange Type, Mounting from Bottom
• Height (M): 36 mm
• Width (W): 70 mm
• Length (L): 102.2 mm
• Mounting Hole Spacing (B × C): 57 × 45 mm
• Dynamic Load Rating: 35.2 kN
• Static Load Rating: 51.6 kN
• Weight: Approximately 0.70 kg
• Seal Type: SS (End Seals + Side Seals + Inner Seals)
• Lubrication Port: M6 Grease Nipple
• Material: Hardened Bearing Steel
• Accuracy: Global Standard Interchangeable Design
• Features: Four-way equal load design, long carriage for higher rigidity, precision-ground raceways, low-friction operation, contamination protection, and long service life.

Common Replacements:

• THK HSR25LB1UU(GK)
• THK HSR25HB1SS(GK)
• THK SHS25LB1SS(GK)