Bearings
Ball Bearings
Thin Section Ball Bearings
Quick Code: BB-129380
61903 SKF Open Thin Section Ball Bearing 17mm x 30mm x 7mm



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Product Specification
Brand
SKF
Inside Dia
17mm
Limiting RPM
32000
Outside Dia
30mm
Sealing
Open
Width
7mm
Reference
61903
Equivalent to:
61903
Quick Order Code
BB-129380
Product Description
The SKF 61903 Open Thin Section Ball Bearing is a precision-engineered component designed for applications requiring compact, lightweight, and high-performance bearing solutions. With its slim 17mm x 30mm x 7mm dimensions, this open design ball bearing offers exceptional versatility across various industrial and mechanical settings.
Key Features:
- Open ball race design allowing free grease circulation
- Ultra-thin section profile
- High-speed capability with 32,000 RPM limit
- Single row ball bearing configuration
- Unsealed construction for direct lubrication
- Compact 17mm inner diameter
- Low 7mm width for space-constrained applications
- Also known as 6903 reference number
Technical Specifications:
- Inside Diameter: 17mm
- Outside Diameter: 30mm
- Width: 7mm
- Sealing Type: Open
- Brand: SKF
- Maximum Rotational Speed: 32,000 RPM
Typical Applications:
- Precision machinery
- Medical equipment
- Robotics and automation systems
- Small electric motors
- Printing and packaging machinery
- Aerospace instrumentation
The unsealed design provides unique advantages, including direct lubrication access, easy maintenance, and optimal grease circulation. Its lightweight construction and high stiffness make it ideal for applications demanding minimal weight, space efficiency, and maximum performance. The thin section design allows for multi-directional loading and exceptional rotational stability.
Performance Benefits:
- Saves critical installation space
- Supports multi-directional loading
- High rotational stability
- Easy maintenance and re-lubrication
- Flexible positioning in compact mechanical systems