311-2Z
With Filling Slots Deep Groove Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
311-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.5 kg
Tolerance class
P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
55 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.015mm to 0
Width
29 mm
Width tolerance
-0.15mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
17805 lbf
Radial static load rating
15062 lbf
Limiting speed
5 X 1000 rpm
Lubrication
Grease
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 30.3
/ each
In Stock
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311-2Z Bearing Product Overview & Core Advantages
The 311-2Z is a single row deep groove ball bearing designed for exceptional reliability in demanding applications. Engineered with shielded construction, it offers robust radial load capacity and is pre-lubricated with grease for long-term, maintenance-free operation. Its precision manufacturing to P0 tolerance class ensures consistent performance, making it an ideal choice for applications requiring high rotational accuracy and durability.
311-2Z Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 311 | Standard bore diameter code (55 mm) and series designation. |
| 2Z | Bearing is equipped with shielded seals on both sides, providing effective protection against contamination while retaining lubricant. |
311-2Z Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The single row deep groove raceway design enables efficient handling of high radial loads (dynamic: 17,805 lbf, static: 15,062 lbf).
- Shielded Protection: The 2Z shields effectively exclude contaminants, extending bearing life and ensuring reliable operation in dusty or dirty environments.
- High-Speed Capability: The combination of a lightweight Nylon cage and optimized grease lubrication supports a limiting speed of 5,000 rpm.
- Maintenance-Free Operation: Pre-lubricated and sealed, the bearing is ready for installation, reducing maintenance requirements and total cost of ownership.
- Precision Performance: Manufactured to P0 tolerance class with a standard CN radial internal clearance, ensuring smooth and precise rotation.
311-2Z Bearing Typical Application Areas
This versatile ball bearing is widely used across various industries, including:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Automotive Components (Pumps, Alternators)
