THK Co., Ltd. HSR35LARRC1 Pillow Block Bearing

Description:

The THK HSR35LARRC1 Pillow Block Bearing is a long flange-type recirculating ball linear guide block designed for use with THK HSR35 series linear guide rails in heavy-duty, high-precision linear motion applications. Featuring an extended carriage length (LA type) with C1 light preload, this linear bearing block provides increased load capacity, excellent moment resistance, high rigidity, and smooth low-friction motion while maintaining precise positioning accuracy. Commonly installed in CNC machining centers, industrial robots, semiconductor manufacturing equipment, automated production lines, precision inspection systems, and heavy material handling equipment, this bearing block is used by maintenance teams, OEM machine builders, and system integrators for equipment repair, retrofit, expansion, and replacement.

Applications:

The THK HSR35LARRC1 is widely used in CNC milling machines, machining centers, gantry automation systems, robotic transfer equipment, semiconductor manufacturing machinery, packaging equipment, precision measuring machines, medical equipment, and heavy-duty factory automation systems. Its long flange carriage design offers superior rigidity and moment load capacity, making it well suited for applications requiring long service life, high precision, and stable linear motion under heavy loads.

Technical Specifications:

• Manufacturer Part Number (MPN): HSR35LARRC1 (#281448)
• Manufacturer: THK Ltd.
• Product Type: Linear Bearing Block (Pillow Block Style)
• Series: HSR Global Standard LM Guide
• Block Type: LA (Long Flange Type)
• Guide Type: Four-Row Recirculating Ball Linear Motion Guide
• Compatible Rail Size: 35 mm
• Overall Height (M): 48 mm
• Block Width (W): 100 mm
• Block Length (L): 134.8 mm
• Mounting Hole Spacing (B × C): 82 × 62 mm
• Mounting Thread: M8 × 12 mm
• Dynamic Load Rating: 50.2 kN
• Static Load Rating: 81.5 kN
• Rail Width: 34 mm
• Rail Height: 30 mm
• Rail Mounting Hole Pitch: 80 mm
• Preload Grade: C1 (Light Preload)
• Material: Hardened Bearing Steel
• Lubrication: Grease or Oil Lubrication
• Features: Long flange carriage, four-way equal load capability, high rigidity, precision-ground raceways, excellent moment load resistance, low-friction operation, and long service life.

Common Replacements:

• THK HSR35LA1SS(GK)
• THK HSR35LA1UU(GK)
• THK HSR35LASSC1(GK)