D/W R4
D/W Series Stainless Steel Miniature Bearings
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D/W R4 Bearing Product Overview & Core Advantages
The R4 is a high-precision, single row deep groove ball bearing designed for exceptional performance in demanding applications. Manufactured entirely from stainless steel, it offers superior corrosion resistance and is ideal for environments where cleanliness and durability are paramount. This bearing is engineered to primarily handle radial loads with a high limiting speed, making it a reliable and compact solution for high-speed machinery and precision instruments. Its open design allows for custom lubrication schemes to meet specific operational requirements.
Model Code Breakdown
| Model Component | Code | Technical Meaning |
|---|---|---|
| Bearing Series | R4 | Denotes a specific series of inch-size, deep groove ball bearings. |
| Seal Type | (None / Open) | The bearing is supplied without seals or shields (Open), allowing for high-speed operation and custom lubrication. |
| Lubrication | None | The bearing is supplied without grease, providing flexibility for the user to apply a specialized lubricant. |
D/W R4 Bearing Structural Features & Performance Benefits
- Full Stainless Steel Construction: The rings, balls, and cage are made from stainless steel, providing excellent resistance to rust and corrosion, which is critical for applications in food processing, medical, and chemical environments.
- High-Speed Capability: The open design and precision-ground components minimize friction and heat generation, enabling a high limiting speed of 60,000 rpm.
- Radial Load Capacity: As a deep groove ball bearing, it is optimized to carry significant radial loads, with a dynamic load rating of 192 lbf.
- Precision Tolerance (P0): Manufactured to ABEC 1 (P0) tolerance class, ensuring consistent running accuracy and smooth operation, which is essential for precision instruments.
- Standard Internal Clearance (CN): Features a normal radial internal clearance, making it suitable for a wide range of common operating conditions.
D/W R4 Bearing Typical Application Areas
This R4 bearing is ideally suited for a variety of applications requiring high speed, corrosion resistance, and precision, including:
- High-Speed Spindles and Small Motors
- Medical and Dental Handpieces
- Precision Instruments and Optical Encoders
- Food and Beverage Processing Equipment
- Office Automation Equipment
