SR166
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SR166
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.81 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.375"
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
0.06252"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
122 lbf
Radial static load rating
44 lbf
Limiting speed
45 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
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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SR166 Bearing Product Overview & Core Advantages
The SR166 is a high-precision, single row deep groove ball bearing designed for reliable performance in demanding applications. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is engineered to primarily support radial loads and is characterized by its compact bearing dimensions (0.1875" bore x 0.375" OD x 0.125" width), making it an ideal solution for space-constrained assemblies requiring dependable rotation and ABEC1 precision.
SR166 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SR | Stainless Steel, Single Row deep groove design. |
| 166 | Standard industry size designation for a bearing with a 0.1875" bore diameter. |
| Open (Seal Type) | No integral seals or shields, allowing for higher limiting speeds and custom lubrication schemes. Requires a clean operating environment or external sealing. |
SR166 Bearing Structural Features & Performance Benefits
- High Corrosion Resistance: Constructed from stainless steel for both rings, balls, and cage, the SR166 is suitable for applications exposed to moisture, chemicals, or requiring wash-downs.
- Precision Performance: Manufactured to ABEC1 tolerance class, ensuring consistent running accuracy and reduced vibration for smooth operation.
- Optimized Internal Geometry: Features 8 precision balls for balanced load distribution and stable operation up to its limiting speed of 45,000 rpm.
- Controlled Internal Clearance: The standard MC3 radial internal clearance (0.00008" to 0.0005") is suitable for a wide range of operational conditions and fits.
- Material Consistency: The use of stainless steel for all key components ensures uniform thermal expansion and compatibility across a broad temperature range (-86 to 230 °F).
SR166 Bearing Typical Application Areas
- Medical and Dental Instrumentation
- Food Processing and Packaging Equipment
- Precision Optical Devices and Encoders
- Small Electric Motors and Spindles
- Laboratory and Analytical Equipment
- Semiconductor Manufacturing Machinery
