718/1120 AMB
Single Row Angular Contact Ball Bearings
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Part No.
Part No.
718/1120 AMB
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
318 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
1120 mm
Bore diameter tolerance
-0.075mm to 0
Outside diameter
1360 mm
Outside diameter tolerance
-0.09mm to 0
Width
106 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
6 mm
Contact angle
40 °
Distance from side face to load point
411 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
1199.8 mm
Outer Ring Dimensions
Shoulder diameter outer ring
1284.7 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
238500 lbf
Radial static load rating
843750 lbf
Limiting speed
0.34 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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718/1120 AMB Bearing Product Overview & Core Advantages
The 718/1120 AMB is a single row angular contact ball bearing engineered for applications requiring exceptional precision and reliability. Designed to accommodate combined loads—simultaneously handling significant radial loads and unidirectional axial loads—this bearing is characterized by its 40° contact angle for superior axial load capacity. Manufactured to a P6 (ABEC-3) tolerance class, it ensures high running accuracy and is ideal for high-performance machinery where rigidity and operational stability are paramount. Its open design allows for custom lubrication solutions to meet specific operational requirements.
718/1120 AMB Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Interpretation |
|---|---|
| 718 | Bearing series designation, indicating a specific internal geometry and performance profile. |
| 1120 | Bore diameter in millimeters (1120 mm). |
| AMB | Suffix indicating the bearing is supplied lubricated and ready for installation. |
718/1120 AMB Bearing Structural Features & Performance Benefits
- High Load Capacity: The single row angular contact design with a 40° contact angle is optimized to support high radial loads and substantial unidirectional axial loads. With a dynamic load rating of 238,500 lbf and a static load rating of 843,750 lbf, it ensures reliable performance under demanding conditions.
- Precision & Rigidity: Manufactured to P6 tolerance and featuring a brass cage, this bearing provides excellent dimensional stability and running accuracy, contributing to overall system rigidity.
- Material Integrity: Constructed from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and a long operational lifespan.
- Optimized Geometry: The specified shoulder diameters (inner ring: 1199.8 mm, outer ring: 1284.7 mm) and a load point distance of 411 mm ensure proper mounting and force distribution within the application.
718/1120 AMB Bearing Typical Application Areas
This bearing is suited for heavy-duty, precision applications, including:
- Large Industrial Gearboxes
- Heavy-Duty Machine Tool Spindles
- Mining and Construction Equipment
- Large Pumps and Compressors
- Wind Turbine Main Shafts
