W 61910-2Z
W Series Stainless Steel Bearings
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Part No.
Part No.
W 61910-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.13 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
12 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
2810 lbf
Radial static load rating
2608 lbf
Limiting speed
9.5 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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W 61910-2Z Bearing Product Overview & Core Advantages
The W 61910-2Z 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, it offers excellent corrosion resistance. Its key advantages include a shielded design (2Z) for contaminant protection and pre-lubrication with grease for long-term, maintenance-free service. This bearing is engineered for precision, featuring a P0 tolerance class and CN radial internal clearance, making it ideal for applications demanding high rotational accuracy and durability.
Model Code Breakdown
| Model Segment | Technical Meaning |
|---|---|
| W | Designates a stainless steel construction. |
| 61910 | The basic bearing designation, indicating a deep groove ball bearing with a 50 mm bore, 72 mm OD, and 12 mm width. |
| -2Z | Signifies that the bearing is equipped with non-contact shields on both sides. This provides effective protection against contaminants while maintaining a low torque and allowing for high limiting speeds. |
W 61910-2Z Bearing Structural Features & Performance Benefits
- Full Stainless Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance for use in harsh environments and ensuring a long service life.
- Optimized Radial Load Capacity: The deep groove raceway and single row design are engineered to support significant radial dynamic and static loads efficiently.
- High-Speed Capability: The combination of a low-friction stainless steel cage and non-contact shields allows the bearing to achieve a limiting speed of 9,500 rpm, making it suitable for high-speed applications.
- Maintenance-Free Operation: The bearing is pre-lubricated with grease and sealed with shields, creating a closed unit that is protected from contamination and does not require relubrication, reducing lifecycle costs.
- Precision Performance: Manufactured to P0 tolerance and standard CN clearance, this bearing ensures consistent running accuracy and smooth operation in precision assemblies.
W 61910-2Z Bearing Typical Application Areas
- Food and Beverage Processing Machinery
- Medical and Laboratory Equipment
- Chemical and Pharmaceutical Processing Pumps
- Marine and Submerged Applications
- Electric Motors and Small Gearboxes
- Precision Instruments and Optical Devices
