SMR115
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR115
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.62 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
11 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
123 lbf
Radial static load rating
46 lbf
Limiting speed
40.5 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.002mm to 0.013mm
Radial internal clearance
MC3
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
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SMR115 Bearing Product Overview & Core Advantages
The SMR115 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance and reliable performance. With its compact design featuring a 5 mm bore, 11 mm outside diameter, and 4 mm width, this bearing is ideal for applications demanding high precision and space efficiency. Its ABEC1 tolerance class ensures consistent quality and smooth operation, making it a dependable choice for various industrial and precision instruments.
SMR115 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| SMR | Manufacturer series designation for miniature and instrument bearings. |
| 115 | Specific size code indicating a 5mm bore, 11mm OD, and 4mm width. |
| Open (Seal Type) | No seals or shields, allowing for higher speeds and easy re-lubrication. |
| MC3 Clearance | Specifies a radial internal clearance group suitable for a wide range of operating conditions. |
SMR115 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The single row deep groove construction, combined with ABEC1 precision and tight dimensional tolerances, provides stable and accurate rotational performance, minimizing vibration and runout.
- Superior Corrosion Resistance: Manufactured entirely from stainless steel (rings, balls, and cage), this bearing is highly resistant to rust and corrosion, ensuring longevity in harsh or wash-down environments.
- Optimized Speed Capability: The open design and precision-ground components contribute to a high limiting speed of 40,500 rpm, making it suitable for high-speed applications.
- Radial Load Capacity: The deep groove raceway is optimally designed to support significant radial dynamic and static loads (123 lbf and 46 lbf respectively), ensuring reliable operation under demanding conditions.
SMR115 Bearing Typical Application Areas
- Precision Instruments and Optical Devices
- Small Electric Motors and Fans
- Medical and Dental Equipment
- Office Automation Equipment (e.g., printers, scanners)
- Robotics and Small Gearboxes
- Radio Control Models and Drones
