S693 2rs
600 Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S693 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.8 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
8 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
96 lbf
Radial static load rating
29 lbf
Limiting speed
54 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Shield material
Nitrile Rubber
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.35
/ each
In Stock
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S693 2rs Bearing Product Overview & Core Advantages
The S693 2RS is a miniature sealed deep groove ball bearing engineered for precision applications requiring compact design and reliable performance. Constructed entirely from stainless steel with integral rubber seals (2RS), this single-row bearing is optimized to handle radial loads efficiently. Its primary advantages include excellent corrosion resistance, consistent operation within a defined temperature range, and extended service life due to its pre-lubricated and sealed design, making it ideal for applications demanding high reliability in limited spaces.
S693 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S693 | Basic bearing series, indicating a miniature metric deep groove ball bearing with a 3mm bore, 8mm OD, and 4mm width. |
| 2RS | Bearing is fitted with contact rubber seals on both sides. The "2" indicates two seals, and "RS" denotes Nitrile Rubber (Buna-N) material. This provides effective protection against contaminants and retains lubricant. |
S693 2rs Bearing Structural Features & Performance Benefits
- Robust Stainless Steel Construction: All core components—rings, balls, and cage—are manufactured from stainless steel, providing superior corrosion resistance and durability, which is critical for operation in harsh or washdown environments.
- Effective Sealing & Lubrication: The double-sided 2RS rubber seals effectively shield the internal bearing components from dust, moisture, and other contaminants while retaining the factory-applied lubricant. This combination ensures long-term, maintenance-free operation.
- Precision & Smooth Operation: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), this bearing offers consistent running accuracy and low noise and vibration levels, suitable for precision mechanisms.
- Optimized Load Capacity: Despite its miniature bearing dimensions (3x8x4mm), it offers a dynamic load rating of 96 lbf and a static load rating of 29 lbf, providing reliable performance for its size class.
S693 2rs Bearing Typical Application Areas
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment.
- Small Electric Motors: Stepper motors, miniature DC motors, and fan motors.
- Office Automation & IT Equipment: Printers, scanners, and disk drives.
- Medical Devices: Small pumps, handheld surgical tools, and diagnostic equipment.
- Robotics & RC Models: Joints, gears, and small drive systems requiring compact, reliable bearings.
