SFRW2zz
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW2zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.2 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.375"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1562"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1875"
Shoulder diameter inner ring
0.2"
Outer Ring Dimensions
Flange outer diameter
0.44"
Flange thickness
0.03"
Ball & Washer Dimensions
Ball diameter
0.0625"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
109 lbf
Radial static load rating
35 lbf
Limiting speed
99 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
300 Series Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 4.29
/ each
In Stock
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SFRW2zz Bearing Product Overview & Core Advantages
The SFRW2zz is a single row deep groove ball bearing designed for precision applications requiring reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantages include a compact extended inner ring design for simplified mounting and secure axial location, and shielded construction to protect against contamination. This bearing is engineered to handle primarily radial loads efficiently, making it ideal for applications demanding high limiting speeds and long service life.
SFRW2zz Bearing Model Code Explained, Specifications & Naming Convention
The model number SFRW2zz is decoded as follows:
- SF: Prefix denoting a specific series of flanged bearings.
- R: Indicates the bearing is manufactured to inch dimensions.
- W: Signifies the use of a stainless steel construction.
- 2zz: Denotes that the bearing is fitted with shields on both sides (2Z). The lowercase 'z' is a common industry variation for this designation.
SFRW2zz Bearing Structural Features & Performance Benefits
- Extended Inner Ring & Flange Design: The extended inner ring simplifies assembly and positioning, while the integral flange allows for secure mounting into a housing, enhancing operational stability and bearing rigidity.
- All-Stainless Steel Construction: Rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and enabling use across a wide temperature range from -86 to 230 °F.
- Shielded for Protection: Non-contact shields on both sides help retain lubricant and exclude larger particulate contaminants, contributing to a longer, maintenance-free service life.
- Optimized for Speed: The deep groove raceway and stainless steel cage design allow for a high limiting speed of 99,000 rpm, making it a capable high-speed bearing.
- Precision & Load Capacity: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3), ensuring smooth and quiet operation. It offers a dynamic load rating of 109 lbf for long-lasting performance under load.
SFRW2zz Bearing Typical Application Areas
This bearing is ideally suited for a variety of compact and precision mechanisms, including:
- Small precision instruments and medical devices
- High-speed spindles in dental handpieces
- Stepper and servo motors
- Office automation equipment (e.g., printers, scanners)
- Radio-controlled models and drones
- Food processing equipment where corrosion resistance is critical
