SRW188
SRW Series Stainless Steel Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SRW188
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
2.32 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1562"
Shoulder diameter inner ring
0.33"
Ball & Washer Dimensions
Ball diameter
0.0787"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
186 lbf
Radial static load rating
72 lbf
Limiting speed
36 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:
$ 3.47
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SRW188 Bearing Product Overview & Core Advantages
The SRW188 is a single row deep groove ball bearing manufactured to inch dimensions, designed for reliable performance in radial load applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its open design allows for versatile lubrication options, making it suitable for a wide operating temperature range from -86 to 230 °F. This bearing is characterized by its compact cross-section, extended inner ring for simplified axial location, and compliance with ABEC1 precision tolerances, providing a robust and cost-effective solution for various industrial applications.
SRW188 Bearing Model Code Explained, Specifications & Naming Convention
The SRW188 model code indicates the following technical specifications:
- SRW: Denotes the bearing series and basic design.
- 188: Specifies the dimensional series and bore size (0.25").
- No Sealing Suffix: The absence of a sealing suffix (e.g., -2RS) confirms an open bearing, requiring external lubrication.
- No Special Cage or Lubricant Suffix: The standard model features a stainless steel cage and requires lubrication post-installation.
SRW188 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The use of stainless steel for all critical components ensures superior corrosion resistance and longevity in harsh environments, making it ideal for applications requiring washdown or exposure to chemicals.
- Deep Groove Raceway & High-Capacity Design: The deep groove geometry of the inner and outer rings is optimized to support significant radial dynamic loads (186 lbf) and moderate axial loads in both directions.
- Extended Inner Ring: The extended inner ring width (0.1562") facilitates easier mounting and provides a larger contact surface for secure axial positioning within an assembly.
- Precision & Clearance: Manufactured to ABEC1 tolerance class with an MC3 radial internal clearance (0.00008" to 0.0005"), this bearing offers consistent and smooth operation for general precision applications.
- High-Speed Capability: With a limiting speed of 36,000 rpm, it is well-suited for high-velocity applications when properly lubricated.
SRW188 Bearing Typical Application Areas
The SRW188 is commonly specified in:
- Medical and Dental Equipment: Pumps, handpieces, and small instruments where corrosion resistance is critical.
- Food and Beverage Processing: Conveyor systems and machinery requiring frequent washdowns.
- Precision Instruments and Optical Devices: Scanning equipment, encoders, and small motors.
- Agricultural and Lawn Equipment: Small idler pulleys, guides, and non-sealed applications.
- General Industrial Machinery: Electric motors, fans, and gearboxes where standard precision and corrosion resistance are required.
