SR155 2rs
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SR155 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.51 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
0.15625"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.3125"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
62 lbf
Radial static load rating
24 lbf
Limiting speed
47.7 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.00008" to 0.0005"
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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SR155 2rs Bearing Product Overview & Core Advantages
The SR155 2RS is a single row deep groove ball bearing designed for exceptional performance in compact, precision applications. Constructed entirely from stainless steel and featuring integral nitrile rubber seals (2RS), this bearing offers reliable radial load capacity and effective protection against contaminants. Its inch-series dimensions and ABEC1 precision class make it an ideal choice for applications demanding high reliability, corrosion resistance, and smooth operation within a wide temperature range.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| SR155 | Standard bearing series designation, indicating specific inch dimensions (Bore: 0.15625", OD: 0.3125", Width: 0.125"). |
| 2RS | Bearing is equipped with two nitrile rubber contact seals, one on each side, providing excellent protection against dust and moisture ingress. |
SR155 2rs Bearing Structural Features & Performance Benefits
- Robust Construction & Corrosion Resistance: The all-stainless steel construction (rings, balls, cage) ensures high corrosion resistance and durability, suitable for harsh environments and extending bearing service life.
- Effective Sealing: The 2RS seals effectively retain lubricant and exclude contaminants, making the bearing suitable for applications where maintenance is difficult or where cleanliness is critical.
- Precision Performance: Manufactured to ABEC1 tolerance class, the bearing ensures smooth and quiet running, contributing to reduced vibration and consistent performance in precision instruments.
- Optimized Internal Geometry: With 10 precision balls, the bearing provides a balanced load distribution, supporting the radial dynamic load rating of 62 lbf.
SR155 2rs Bearing Typical Application Areas
The SR155 2RS is widely used in various industries and equipment, including:
- Precision Instruments: Optical encoders, medical devices, and small measuring instruments.
- Small Electric Motors: Miniature DC motors, stepper motors, and fans.
- Office Automation Equipment: Printers, scanners, and copiers.
- Food Processing & Medical Equipment: Where stainless steel's corrosion resistance and cleanability are essential.
- Robotics & Automation: Small joints, guides, and low-torque drive mechanisms.
