SMR105
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR105
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.91 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
10 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.2 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
74 lbf
Radial static load rating
27 lbf
Limiting speed
45 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
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.35
/ each
In Stock
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SMR105 Bearing Product Overview & Core Advantages
The SMR105 is a metric single row deep groove ball bearing designed for precision radial load applications. Manufactured entirely from stainless steel, it offers excellent corrosion resistance and is suitable for a wide operating temperature range. This bearing is characterized by its compact dimensions (5mm bore, 10mm OD, 3mm width) and ABEC1 precision class, making it an ideal choice for applications requiring reliable performance in compact spaces. Its open design allows for versatile lubrication options to meet specific operational needs.
SMR105 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMR | Manufacturer series designation for miniature and instrument ball bearings. |
| 105 | Bore diameter code, indicating a 5 mm bore. |
| Open (Default) | No seals or shields, allowing for high-speed operation and custom lubrication. |
SMR105 Bearing Structural Features & Performance Benefits
- High-Quality Stainless Steel Construction: All components, including rings, balls, and the cage, are made from stainless steel, providing superior corrosion resistance and durability in harsh environments.
- Optimized Radial Load Capacity: The deep groove raceway and 8 precision balls enable efficient handling of radial dynamic loads up to 74 lbf and static loads up to 27 lbf.
- Precision Performance: Built to ABEC1 tolerance class with controlled radial internal clearance (MC3 group: 0.002mm to 0.013mm), ensuring smooth and consistent operation with minimal vibration.
- Compact and Lightweight: With a width of just 3 mm and a weight of only 0.91 g, it is engineered for applications where space and weight are critical constraints.
- Versatile Lubrication: The open structure requires lubrication but offers the flexibility to use greases or oils best suited for the application's speed and temperature requirements.
SMR105 Bearing Typical Application Areas
- Precision instruments and measuring devices
- Small electric motors and miniature gearboxes
- Medical devices and laboratory equipment
- Office automation equipment (e.g., printers, scanners)
- Radio-controlled models and drones
- Low-torque, high-speed spindles
