SR1-5
SR Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SR1-5 Bearing Product Overview & Core Advantages
The SR1-5 is a precision miniature ball bearing designed for applications demanding compact size and reliable performance. As an open single row radial ball bearing, it excels at handling radial loads in high-speed scenarios. Manufactured entirely from stainless steel, it offers excellent corrosion resistance and is compliant with RoHS and REACH standards. Its compact design, with a bore diameter of just 0.09375", makes it an ideal solution for space-constrained, high-precision mechanisms.
SR1-5 Bearing Model Code Explained, Specifications & Naming Convention
The model designation SR1-5 follows a common industry nomenclature for miniature bearings. Here is a breakdown of its key characteristics:
- SR: Denotes a Single Row radial ball bearing construction.
- 1-5: Specifies the bearing's size series, indicating a compact, miniature form factor.
- Open (Seal Type): The bearing is supplied without seals or shields, allowing for higher limiting speeds and custom lubrication options.
- ABEC1: Specifies the tolerance class, indicating a standard level of precision suitable for a wide range of general applications.
- MC3: Denotes the radial internal clearance group, optimized for general operating conditions.
SR1-5 Bearing Structural Features & Performance Benefits
The SR1-5's performance is derived from its robust design and material selection:
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and durability in harsh environments.
- High-Speed Capability: The open design and precision-ground components contribute to a high limiting speed of 54,000 rpm, making it suitable for demanding high-speed applications.
- Precision Engineering: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3), ensuring smooth and consistent operation.
- Optimized Load Capacity: With a dynamic load rating of 95 lbf and a static load rating of 29 lbf, it provides reliable performance under significant radial stresses.
SR1-5 Bearing Typical Application Areas
The SR1-5 miniature bearing is widely used in precision instruments and compact machinery, including:
- Small DC Motors and Gearboxes
- Medical and Dental Handpieces
- Precision Optical Encoders and Scanners
- RC Models and Drones
- Small Pumps and Fans
- Office Automation Equipment
