61821
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
61821
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.31 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
105 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.015mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
4676 lbf
Radial static load rating
4406 lbf
Limiting speed
6.3 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:
$ 89.93
/ each
In Stock
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61821 Bearing Product Overview & Core Advantages
The 61821 metric ball bearing is a single row deep groove ball bearing engineered for high-precision radial load applications. Characterized by its compact cross-section with a 13 mm width, this open-type bearing delivers reliable performance in high-speed operations up to 6,300 rpm. Manufactured to P6 tolerance class, it ensures superior running accuracy and is ideal for applications demanding high rotational precision and rigidity.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6 | Series: Deep Groove Ball Bearing |
| 1 | Width Series: Extra Light / Thin |
| 8 | Bore Diameter Series |
| 21 | Bore Diameter: 105 mm |
| Open | Seal Type: No seals or shields (unsealed) |
61821 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The stainless steel cage and optimized internal geometry enable stable operation at the limiting speed of 6,300 rpm, making it suitable for high-speed spindles and motors.
- Radial Load Capacity: With a dynamic load rating of 4,676 lbf and static load rating of 4,406 lbf, it provides reliable support for substantial radial forces.
- Precision Engineering: Manufactured to P6 tolerance class with a CN radial internal clearance, this bearing ensures minimal vibration and high running accuracy for precision machinery.
- Material Durability: Both rings and balls are made from chrome steel, offering excellent wear resistance and longevity under demanding operating conditions.
- Compact Design: The thin cross-section (13mm width) allows for space-saving integration in compact assemblies without compromising performance.
61821 Bearing Typical Application Areas
- Electric Motors and High-Speed Spindles
- Precision Machinery and Instrumentation
- Pumps and Gearboxes
- Medical Equipment and Office Automation Devices
- Robotics and Automation Systems
