SMR52 2rs
SMR Series Stainless Steel Miniature Bearings
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Part No.
Part No.
SMR52 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.14 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
2 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
5 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.8 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
29 lbf
Radial static load rating
8 lbf
Limiting speed
76.5 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Shield material
Nitrile Rubber
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 2.29
/ each
In Stock
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SMR52 2rs Bearing Product Overview & Core Advantages
The SMR52 2rs is a miniature sealed ball bearing designed for applications demanding compact size, reliable performance, and corrosion resistance. As a metric single row deep groove ball bearing, it excels at handling primarily radial loads while offering moderate axial load capacity. Its stainless steel construction throughout (rings, balls, cage) ensures excellent durability and suitability for various environments. The integrated rubber seal (2RS) provides effective contamination protection, making it a robust and maintenance-friendly solution for high-speed, precision mechanisms.
SMR52 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| SMR52 | Standard miniature bearing series designation, indicating a 2mm bore, 5mm OD, and 2.5mm width. | Defines the compact bearing dimensions for space-constrained designs. |
| 2RS | Bearing is equipped with two (2) rubber contact seals (RS) on both sides. | Provides superior sealing against dust and moisture, enhancing bearing life and reliability. Offers a maintenance-free solution in many applications. |
SMR52 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: The fundamental geometry allows for smooth operation under radial loads and accommodates bidirectional axial loads, providing versatile load-handling capability in a compact form factor.
- Full Stainless Steel Construction: Both bearing rings, the 6 balls, and the cage are manufactured from stainless steel. This ensures excellent corrosion resistance, making the bearing suitable for harsh environments and applications requiring washdown or exposure to chemicals.
- High-Speed Capability: With a limiting speed of 76,500 rpm, this bearing is engineered for high-velocity applications. The precision stainless steel cage maintains ball alignment and stability at these extreme speeds.
- Sealed and Lubricated for Life: The nitrile rubber contact seals (2RS) effectively retain grease and exclude contaminants. The bearing comes pre-lubricated, offering long-term, maintenance-free operation within its specified temperature range.
- Precision Engineering: Manufactured to ABEC1 tolerance class and featuring a controlled radial internal clearance (MC3), this bearing delivers consistent and smooth running performance, minimizing vibration and noise.
SMR52 2rs Bearing Typical Application Areas
The SMR52 2rs is ideally suited for compact, high-speed, and precision devices across various industries:
- Small Precision Motors: Stepper motors, coreless motors, and miniature DC motors.
- Medical and Dental Equipment: Surgical handpieces, dental drills, and small pump systems.
- Office Automation: Laser printer rollers, scanner mechanisms, and small fans.
- Robotics and Automation: Small robotic joints, encoder shafts, and guided vehicles.
- Instrumentation and Gauges: High-speed spindles and sensitive measuring devices.
