SMR117zz
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR117zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.71 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
11 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
9
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
78 lbf
Radial static load rating
33 lbf
Limiting speed
38.7 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
Shield material
300 Series 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
SMR117zz Bearing Product Overview & Core Advantages
The SMR117zz is a miniature deep groove ball bearing engineered for precision applications requiring compact design and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its shielded design provides effective protection against contamination while maintaining low friction. This bearing is designed to handle primarily radial loads and is characterized by its small bore diameter of 7mm and lightweight construction at just 0.71g, making it ideal for space-constrained, high-speed mechanisms.
SMR117zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| zz | Indicates the bearing is equipped with non-contact shields (2Z) on both sides. This provides effective protection against dust and debris while minimizing friction and torque, suitable for high-speed operation. |
| No Lubricant Suffix | The bearing is supplied without grease (Lubrication: Required), offering flexibility for the user to apply a specialized lubricant tailored to the specific application's speed, temperature, and environmental conditions. |
SMR117zz Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage, precision-ground stainless steel balls, and non-contact shields enables a high limiting speed of 38,700 rpm, making it an excellent high-speed bearing for miniature applications.
- Corrosion Resistance & Cleanliness: Manufactured entirely from 300 series stainless steel, the bearing is highly resistant to rust and corrosion. This makes it suitable for applications exposed to moisture, chemicals, or requiring cleanroom compatibility.
- Precision Performance: Built to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), ensuring consistent running accuracy and smooth operation, which is critical for sensitive instrumentation.
- Robust Load Capacity: Despite its miniature bearing dimensions (7x11x3mm), it provides a substantial dynamic load rating of 78 lbf, offering a high load-to-size ratio for its compact footprint.
SMR117zz Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in miniature DC motors, stepper motors, and coreless motors.
- Medical and Dental Devices: Used in surgical handpieces, dental drills, and pump mechanisms where corrosion resistance and reliability are paramount.
- Office Automation Equipment: Critical components in printers, scanners, and small fans.
- Precision Instruments and Robotics: Supports shafts in optical encoders, small robotic joints, and guidance systems.
- Radio-Controlled Models and Drones: Provides high-speed support in motor and gearbox assemblies.
