Bearings
Linear Bearings & Shaft
Linear Ball Screw Drive
Ball Screw Bearing Unit
Quick Code: BB-531415
BK12 THK Bearing unit
The BK12 THK Bearing Unit is a precision ball screw bearing unit designed for standardized general ball screw applications. This housing unit features a robust block design optimized for fixed-side support in ball screw drive systems.
Key Specifications:
- Inner Dimension: 12mm shaft diameter
- Bearing Configuration: 2x 7001 angular contact bearings in DF-set arrangement
- Material: Steel construction for durability and reliability
- Lubrication: Pre-greased with lithium soap-group grease for extended operation without frequent maintenance
- Seal Type: Labyrinth seal providing effective contamination protection
- Preload: Factory-adjusted preload for optimal bearing performance
Design Features:
This bearing unit combines a JIS Class 5-compliant angular contact bearing with an adjusted preload on the fixed side, ensuring precise positioning and minimal backlash. The BK12 is part of THK's BK/BF combination series, which represents the standardized support unit line for general ball screws.
Applications:
Ideal for industrial automation, CNC machinery, precision positioning systems, and general mechanical drive applications where reliable ball screw support is required. The sealed, greased design makes it particularly suitable for environments requiring minimal maintenance and extended service intervals.
