Bearings
Linear Bearings & Shaft
Linear Ball Screw Drive
Ball Screw Bearing Unit
Quick Code: BB-531418
BK40 THK Bearing unit
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Product Specification
Article type
Housing unit for locating arrangement with an angular contac
Bearing
2x 7208 in DF-set
Combination
BK/BF
Inner dimension
40mm
Lubrication
Greased
Material
Steel
Preload
With preload
Seal
With labyrinth seal
Version
Block design
Reference
BK40
Additional Reference:
10191103
Brand
THK
Quick Order Code
BB-531418
Product Description
The BK40 THK Bearing Unit is a precision ball screw support unit designed for standardized general ball screw applications. This housing unit features a block design and is engineered to provide reliable shaft support in linear motion systems.
Key Specifications:
- Inner Dimension: 40mm shaft size
- Bearing Configuration: 2x 7208 angular contact bearings in DF-set arrangement
- Housing Type: Block design for compact mounting
- Material: Steel construction for durability and strength
Performance Features:
- Preload: Factory-adjusted preload for optimal load distribution and reduced backlash
- Lubrication: Pre-greased with lithium soap-group grease for extended operating life
- Sealing: Labyrinth seal design provides protection against contamination while minimizing friction
- Bearing Type: Angular contact bearings deliver high rigidity and precision
Applications:
The BK40 is ideal for precision positioning systems, automated machinery, CNC equipment, and industrial automation requiring reliable ball screw support with minimal maintenance. The combination of preload adjustment and sealed lubrication ensures consistent performance across extended operating periods.
Part of the BK/BF combination series – standardized support units optimized for general ball screw applications.
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