61903
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
61903
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.016 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
30 mm
Outside diameter tolerance
-0.008mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
1039 lbf
Radial static load rating
573 lbf
Limiting speed
32 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 9.66
/ each
In Stock
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61903 Bearing Product Overview & Core Advantages
The 61903 is a metric single row deep groove ball bearing engineered for precision and reliability in demanding applications. Characterized by its compact design with a 17 mm bore, 30 mm outside diameter, and minimal 7 mm width, this bearing excels in handling radial loads efficiently. Manufactured to a P6 tolerance class, it offers superior dimensional accuracy and running precision, making it an ideal component for high-speed machinery and precision instruments where consistent performance is critical.
61903 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61903 | Basic model number denoting a single row deep groove ball bearing with a 17mm bore and 30mm OD. |
| (No Suffix) | Indicates an open (unsealed) bearing design, allowing for custom lubrication solutions. |
| P6 | Specifies a tolerance class tighter than standard, ensuring high precision in dimensions and running accuracy. |
| CN | Denotes the standard radial internal clearance group for normal operating conditions. |
61903 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage and precision-ground chrome steel components enables a high limiting speed of 32,000 rpm, suitable for demanding rotational applications.
- Precision Performance: Manufactured to P6 tolerance with strict bore and outside diameter tolerances, this bearing ensures minimal vibration and noise, contributing to smoother operation and extended service life in precision assemblies.
- Robust Load Capacity: With a dynamic load rating of 1039 lbf and a static load rating of 573 lbf, it provides reliable performance under significant radial stresses.
- Material Integrity: Constructed from high-grade chrome steel rings and balls, the bearing offers excellent wear resistance and durability. The stainless steel cage provides superior corrosion resistance and strength.
- Wide Temperature Range: Operates effectively within a temperature range of -30°C to 120°C, accommodating various industrial environments.
61903 Bearing Typical Application Areas
- Precision Electric Motors and small spindles requiring high-speed and low-noise operation.
- Medical and Dental Equipment such as handpieces and small pumps where reliability and precision are paramount.
- Office Automation Equipment including printers, scanners, and copiers.
- Instrumentation and Control Systems for precise rotational movement.
- Small gearboxes and drives in robotics and automation.
