SMR117 2rs
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR117 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.71 g
Tolerance class
ABEC1
Seal type
Sealed
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
Nitrile Rubber
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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SMR117 2rs Bearing Product Overview & Core Advantages
The SMR117 2RS is a sealed miniature ball bearing designed for applications demanding compact size, corrosion resistance, and reliable performance. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent durability in various environments. Its key advantage lies in its integrated 2RS double rubber seals, which effectively retain lubrication and exclude contaminants, making it a robust, low-maintenance solution for continuous operation. This bearing is engineered to handle radial loads efficiently within its compact 7x11x3 mm dimensions.
SMR117 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMR117 | Basic bearing designation indicating a metric, single-row deep groove ball bearing with a 7mm bore, 11mm OD, and 3mm width. |
| 2RS | Signifies contact-type Rubber Seals on both sides. This provides superior protection against contamination and grease leakage compared to non-contact shields. |
SMR117 2rs Bearing Structural Features & Performance Benefits
- Corrosion Resistance & Longevity: The all-stainless steel construction (AISI 440) for rings, balls, and cage ensures high resistance to rust and corrosion, extending service life in harsh or washdown environments.
- Effective Sealing: The 2RS double rubber seals provide excellent protection, retaining lubricant and excluding dust, moisture, and other contaminants. This is critical for maintaining performance and achieving a low-maintenance design.
- Precision & Smooth Operation: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance, this bearing offers reliable and smooth running for a wide range of miniature and precision applications.
- Load Capacity & Speed: With a dynamic load rating of 78 lbf and a limiting speed of 38,700 rpm, it is well-suited for small mechanisms requiring high-speed capability and dependable radial load support.
SMR117 2rs Bearing Typical Application Areas
- Small Precision Motors: Ideal for stepper motors, DC motors, and servo motors used in automation and robotics.
- Medical and Dental Devices: Suitable for handheld surgical tools, dental handpieces, and pump mechanisms due to its corrosion resistance and compact size.
- Office Automation Equipment: Commonly used in printers, scanners, and copiers for paper feed rollers and scanner carriages.
- Instrumentation and Gauges: Provides precise, low-friction rotation in various measuring devices and precision instruments.
- Radio Control Models: Used in high-speed gearboxes and drivetrains of drones, RC cars, and airplanes.
