Bearings
Linear Bearings & Shaft
Linear Ball Screw Drive
Ball Screw Bearing Unit
Quick Code: BB-532813
BUF25 Ewellix Bearing unit
BUF25 Ewellix Bearing Unit – Free-Side Support for Precision Ball Screw Applications
The BUF25 is a standardized bearing unit designed to serve as the free-side (non-locating) support for general ball screw drive systems. This housing unit combines reliable engineering with robust construction to deliver dependable performance in linear motion applications where flexible axial accommodation is required.
Key Specifications:
- Inner Diameter: 25mm
- Bearing Configuration: 1x 6203 2RS1 deep-groove ball bearing
- Design Type: Block design housing unit with sealed bearing
- Bearing Arrangement: Non-locating configuration for axial float accommodation
- Lubrication: Pre-greased for extended service life
- Material: Burnished steel construction for durability and reliability
- Seal Type: 2RS1 sealed bearing design for effective contamination protection
- Scope of Delivery: Includes circlip for secure installation
Design Features:
The BUF25 incorporates a single 6203 2RS1 deep-groove ball bearing, which provides smooth radial support while allowing controlled axial movement. This non-locating arrangement is essential in ball screw systems, as it permits thermal expansion and contraction of the screw shaft while maintaining consistent bearing performance. The sealed bearing design minimizes contamination ingress and reduces maintenance requirements.
Typical Applications:
- CNC machine tools and automated positioning systems
- Industrial automation equipment requiring precision linear motion
- General-purpose ball screw drive assemblies in manufacturing systems
- Applications requiring sealed, maintenance-free bearing support
- Complementary pairing with fixed-side bearing units in complete screw support systems
The sealed and pre-greased design enables extended operation with minimal maintenance, making the BUF25 an economical choice for demanding industrial environments where reliable, long-term performance is essential.
