6203-2Z/WT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6203-2Z/WT
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
65 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
40 mm
Outside diameter tolerance
-0.011mm to 0
Width
12 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
2147 lbf
Radial static load rating
1079 lbf
Limiting speed
17 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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6203-2Z/WT Bearing Product Overview & Core Advantages
The 6203-2Z/WT is a single row deep groove ball bearing designed for reliable performance in demanding applications. Engineered with metric dimensions and manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers a robust solution for carrying primarily radial loads. Its key advantage lies in its shielded (2Z) construction, which provides effective protection against contaminant ingress while maintaining low friction. This combination of fundamental reliability, standardized precision, and built-in protection makes it an excellent choice for a wide range of industrial machinery and electric motors.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6203 | Basic bearing series, indicating a single row deep groove ball bearing with a 17 mm bore, 40 mm OD, and 12 mm width. |
| 2Z | Bearing is equipped with shields on both sides. This provides good protection against large particulate contaminants. |
| /WT | A manufacturer-specific suffix. In this context, it indicates the bearing is supplied without any initial lubrication ("WT" often stands for "Without Treatment/Grease"). |
6203-2Z/WT Bearing Structural Features & Performance Benefits
- Shielded Design for Contamination Resistance: The 2Z non-contact steel shields on both sides effectively prevent larger solid contaminants from entering the bearing interior, enhancing operational reliability in moderately dirty environments without significantly increasing torque.
- Optimized for Radial Loads: The deep groove raceway and single row construction are ideally suited to handle significant radial loads, with a dynamic load rating of 2147 lbf and a static load rating of 1079 lbf.
- Precision and Interchangeability: Manufactured to ABEC 1 (ISO P0) tolerance class with a CN group radial internal clearance, ensuring consistent performance and easy replacement in standard applications.
- High-Speed Capability: The chrome steel construction for rings, balls, and cage, combined with the low-friction shield design, allows for a limiting speed of 17,000 rpm, making it suitable for various high-speed applications.
- Customizable Lubrication: Supplied without lubrication, providing flexibility for the end-user to apply a specialized grease or oil best suited for their specific operating conditions, including the specified temperature range of -30°C to 120°C.
6203-2Z/WT Bearing Typical Application Areas
- Electric Motors: A standard choice for the rotors of small to medium-sized industrial motors, fans, and blowers.
- Industrial Gearboxes: Used in various stages for supporting shafts under radial loads.
- Material Handling Equipment: Conveyor rollers, pulley systems, and other machinery requiring reliable, shielded bearings.
- Agricultural Machinery: Applications in pumps, fans, and auxiliary drives where contamination resistance is beneficial.
- General Industrial Machinery: A versatile component in pumps, compressors, and machine tools where standard precision and durability are required.
