61804
618 & 619 Series Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
61804
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.017 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.009mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
906 lbf
Radial static load rating
522 lbf
Limiting speed
28 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:
$ 10.73
/ each
In Stock
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61804 Bearing Product Overview & Core Advantages
The 61804 is a single row deep groove ball bearing designed for high-precision applications demanding reliable performance under primarily radial loads. Characterized by its compact cross-section with a 7 mm width, this open-type bearing is manufactured to P6 tolerance class for superior running accuracy. Its construction from chrome steel rings and balls, combined with a stainless steel cage, ensures high durability and consistent operation, making it an ideal component for applications requiring precision and high limiting speeds.
Model Code Breakdown
| Prefix/Suffix | Interpretation |
|---|---|
| 6 | Series Designation: Deep Groove Ball Bearing |
| 1 | Width Series |
| 8 | Bore Diameter Series |
| 04 | Bore Diameter Code: 20 mm |
| (No Seal Suffix) | Open (non-contact, no seal) design |
61804 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to P6 tolerance class with tight dimensional control (bore: -0.008mm to 0), ensuring precise shaft positioning and smooth, low-vibration operation.
- Optimized Load Capacity: The deep groove raceway and stainless steel cage effectively support significant radial dynamic load ratings (906 lbf), making it suitable for applications with substantial radial forces.
- High-Speed Capability: The lightweight, durable stainless steel cage and open design contribute to a high limiting speed of 28,000 rpm, enabling use in demanding, high-rotation environments.
- Robust Material Construction: Components made from chrome steel (rings, balls) offer high hardness and wear resistance, while the stainless steel cage provides excellent corrosion resistance and cage integrity.
- Standard Internal Clearance: Features a CN (normal) group radial internal clearance, suitable for a wide range of standard operating conditions and fits.
61804 Bearing Typical Application Areas
This bearing is commonly specified in precision machinery and compact mechanisms, including:
- Small Electric Motors and Spindles
- Precision Gearboxes and Transmissions
- Office Automation Equipment (e.g., printers, scanners)
- Medical and Dental Handpieces
- Instrumentation and Measurement Devices
