6804
6800 Series Thin Section Bearings
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Part No.
Part No.
6804
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
18 g
Tolerance class
ABEC-1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.011mm to 0
Width
7 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
904 lbf
Radial static load rating
554 lbf
Limiting speed
25 X 1000 rpm
Lubrication
Required
Radial internal clearance
C0
Radial internal clearance
0.006mm to 0.020mm
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:
$ 2.06
/ each
In Stock
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6804 Bearing Product Overview & Core Advantages
The 6804 is a single row deep groove ball bearing designed for exceptional performance in compact spaces. Engineered to primarily handle radial loads, it features a standard open design that facilitates easy re-lubrication. Manufactured to ABEC-1 precision tolerances, this bearing ensures reliable operation and is characterized by its low weight and high limiting speed, making it an ideal choice for applications demanding high rotational accuracy and efficiency.
6804 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix / Prefix | Interpretation | Technical Significance |
|---|---|---|
| 68 | Series Code | Denotes a deep groove ball bearing series with a specific cross-section. |
| 04 | Bore Diameter Code | Indicates a 20 mm bore diameter (04 x 5 = 20 mm). |
| (None) | Seal/Shield Designation | The absence of a suffix indicates an open (unsealed) bearing, allowing for versatile lubrication options. |
| (None) | Cage Designation | Standard stainless steel cage is used, offering good durability and corrosion resistance. |
| (None) | Internal Clearance | Standard C0 radial internal clearance (0.006mm to 0.020mm) is standard for this model. |
6804 Bearing Structural Features & Performance Benefits
- Optimized Deep Groove Raceway: The deep groove geometry of both inner and outer rings enables the bearing to efficiently support significant radial dynamic load ratings (904 lbf) and moderate axial loads in both directions.
- High-Speed Capability: The combination of a lightweight stainless steel cage and precision-ground chrome steel components allows for a high limiting speed of 25,000 rpm, making it suitable for demanding rotational applications.
- Precision Engineering: Manufactured to ABEC-1 tolerance class with tight bore and outside diameter tolerances, ensuring smooth, quiet, and vibration-free operation, which is critical for maintaining system accuracy.
- Robust Material Construction: The use of high-carbon chrome steel for rings and balls provides excellent hardness and wear resistance, contributing to a long service life under standard operating conditions.
- Flexible Lubrication: The open seal type design allows for the use of various lubricants tailored to specific application needs, including high-speed greases or oil systems, to optimize performance across its operating temperature range of -30°C to 110°C.
6804 Bearing Typical Application Areas
The 6804 deep groove ball bearing is widely used in various industrial and precision applications where reliability and compactness are key. Typical uses include:
- Electric Motors: Small to medium-sized motors for appliances, power tools, and fans.
- Precision Spindles: Support for spindles in small machining tools, dental handpieces, and engraving equipment.
- Office Automation Equipment: High-speed components in printers, scanners, and copiers.
- Medical Devices: Low-noise, precision drives in diagnostic and laboratory equipment.
- Material Handling Systems: Guide rollers and conveyor pulleys requiring smooth operation.
