S6904
S6900 Series Stainless Steel Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S6904
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
40 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
37 mm
Outside diameter tolerance
-0.011mm to 0
Width
9 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
1291 lbf
Radial static load rating
745 lbf
Limiting speed
17.1 X 1000 rpm
Lubrication
Required
Radial internal clearance
C0
Radial internal clearance
0.006mm to 0.020mm
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 2.25
/ each
In Stock
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S6904 Bearing Product Overview & Core Advantages
The S6904 is a metric single row deep groove ball bearing engineered for precision radial load applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance and durability. This bearing is manufactured to ABEC-1 precision class, ensuring reliable performance in high-speed operations up to 17,100 rpm. Its compact design, with a 20 mm bore and 9 mm width, makes it ideal for applications demanding high rotational accuracy and space-saving solutions.
S6904 Bearing Model Code Explained, Specifications & Naming Convention
The S6904 model designation follows a standard industry coding system. Below is a breakdown of its key characteristics:
- S: Prefix often indicating a specific series or manufacturer's designation.
- 69: Denotes the series, typically associated with a specific cross-section and performance profile.
- 04: Indicates the bore diameter; '04' corresponds to a 20 mm bore (04 x 5 = 20 mm).
- Open: The bearing features an open (unsealed) design, allowing for custom lubrication schemes.
- C0: Specifies a normal radial internal clearance (0.006mm to 0.020mm).
- ABEC-1: Defines the precision tolerance class.
S6904 Bearing Structural Features & Performance Benefits
The S6904's design delivers distinct performance advantages:
- High-Speed Capability: The optimized single row deep groove raceway and stainless steel cage contribute to a high limiting speed of 17,100 rpm, making it a capable high-speed bearing.
- Corrosion Resistance: Manufactured entirely from stainless steel, this bearing is well-suited for harsh environments where moisture or chemicals are present.
- Precision Performance: The ABEC-1 tolerance class ensures consistent running accuracy and low vibration, which is critical for smooth operation.
- Radial Load Capacity: With a dynamic load rating of 1291 lbf and a static load rating of 745 lbf, it is designed to handle significant radial loads effectively.
S6904 Bearing Typical Application Areas
The S6904 is commonly specified in applications requiring precision, speed, and corrosion resistance, including:
- Medical and Dental Equipment
- Food Processing Machinery
- Precision Instruments and Optical Devices
- Small Electric Motors and Spindles
- Laboratory and Analytical Equipment
