S6918zz
S6900 Series Stainless Steel Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S6918zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
565 g
Tolerance class
ABEC-1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.018mm to 0
Width
18 mm
Width tolerance
-0.200mm to 0
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
6636 lbf
Radial static load rating
6394 lbf
Limiting speed
4.6 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.012mm to 0.036mm
Radial internal clearance
C0
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:
$ 33.81
/ each
In Stock
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S6918zz Bearing Product Overview & Core Advantages
The 61918-2Z is a single row deep groove ball bearing designed for high-performance applications requiring reliable radial load capacity and smooth operation. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its key advantages include a shielded design (2Z) for contaminant protection, a high limiting speed of 4,600 rpm, and compliance with both ROHS and REACH standards, making it suitable for demanding industrial and precision environments.
S6918zz Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 61918 | Basic model designation for a single row deep groove ball bearing with 90mm bore, 125mm OD, and 18mm width. |
| 2Z | Non-contact steel shields on both sides, providing effective protection against contaminants while maintaining high-speed capability. |
S6918zz Bearing Structural Features & Performance Benefits
- Robust Construction: The single row deep groove raceway and all-stainless steel construction provide excellent dimensional stability and resistance to corrosion in harsh environments.
- High Load Capacity: With a dynamic load rating of 6636 lbf and static load rating of 6394 lbf, it reliably handles significant radial loads.
- Optimized High-Speed Performance: The stainless steel cage and optimized geometry enable a limiting speed of 4,600 rpm, suitable for high-rotation applications.
- Precision Operation: Manufactured to ABEC-1 tolerance class with a C0 radial clearance (0.012mm to 0.036mm), ensuring consistent performance and low vibration.
- Wide Temperature Range: Operates effectively across a broad temperature range from -86°F to 230°F (-66°C to 110°C).
S6918zz Bearing Typical Application Areas
- Food Processing & Packaging Machinery (corrosion-resistant, compliant with hygiene standards)
- Medical Equipment (precision components requiring smooth, reliable operation)
- Electric Motors & Pumps (high-speed rotation with radial load support)
- Precision Instruments & Laboratory Equipment (low vibration, consistent performance)
- Marine & Chemical Processing Equipment (stainless steel construction for corrosive environments)
