RW1-4zz
RW Series Extended Inner Ring Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
RW1-4zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.53 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.07813"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.25"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1406"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1719"
Shoulder diameter inner ring
0.122"
Ball & Washer Dimensions
Ball diameter
0.0394"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
54 lbf
Radial static load rating
17 lbf
Limiting speed
67 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.00008" to 0.0005"
Materials
Ring material
Chrome Steel
Ball material
Chrome 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:
$ 3.77
/ each
In Stock
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RW1-4zz Bearing Product Overview & Core Advantages
The RW1-4zz is a high-precision, single row ball bearing designed for demanding applications requiring reliable performance in a compact form factor. Engineered with inch dimensions, this shielded bearing excels in handling radial loads and is characterized by its robust construction and consistent operation. Its primary advantages include a high limiting speed of 67,000 rpm, making it suitable for high-velocity scenarios, and a radial dynamic load rating of 54 lbf, ensuring durability under stress. The use of premium materials like chrome steel for rings and balls, combined with a stainless steel cage, guarantees longevity and resistance to wear, positioning it as an ideal choice for precision instruments and compact machinery.
RW1-4zz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| zz | Shielded on both sides | Provides effective contamination protection, retaining lubricant and excluding debris, enhancing bearing life in harsh environments. |
| Extended Inner Ring | Inner ring width greater than standard | Facilitates easier mounting and axial location, improving assembly accuracy and stability. |
RW1-4zz Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage, seven precision balls, and optimized internal geometry enables stable operation at the high limiting speed of 67,000 rpm, reducing friction and heat generation.
- Radial Load Capacity: With a radial dynamic load rating of 54 lbf and a radial static load rating of 17 lbf, the bearing reliably supports significant radial forces, ensuring performance in load-bearing applications.
- Shielded Protection: The dual stainless steel shields (zz) effectively seal the bearing, protecting against contaminants and lubricant loss, which is critical for maintaining performance and reducing maintenance needs.
- Precision Engineering: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3: 0.00008" to 0.0005"), it delivers smooth, low-vibration operation, essential for precision devices.
- Material Durability: Components made from chrome steel (rings, balls) and stainless steel (cage, shields) offer excellent hardness, corrosion resistance, and overall longevity.
RW1-4zz Bearing Typical Application Areas
- Precision Instruments: Used in optical encoders, gauges, and small measuring devices where accuracy and compact size are critical.
- Small Motors and Drives: Ideal for miniature DC motors, stepper motors, and fan assemblies requiring high-speed operation and reliability.
- Office Automation Equipment: Applied in printers, scanners, and copiers for smooth rotational movement in paper feed and scanning mechanisms.
- Medical Devices: Suitable for handheld surgical tools, dental equipment, and diagnostic instruments due to its precision and contamination resistance.
- Robotics and Automation: Employed in small robotic joints, actuators, and conveyor systems where space constraints and performance are key.
