1218J
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1218J
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
2.5 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Bore type
Cylindrical
Outside diameter
160 mm
Outside diameter tolerance
-0.025mm to 0
Width
30 mm
Width tolerance
-0.2mm to 0
Chamfer dimension
2 mm
Inner Ring Dimensions
Shoulder diameter inner ring
112.5 mm
Outer Ring Dimensions
Shoulder diameter outer ring
138.7 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
12870 lbf
Radial static load rating
5310 lbf
Limiting speed
5.3 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 159.1
/ each
In Stock
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1218J Bearing Product Overview & Core Advantages
The 1218J is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This precision bearing features an open design and is pre-lubricated, enabling it to handle significant combined loads including radial forces and bidirectional axial loads. Its compact bearing dimensions (90mm bore, 160mm OD, 30mm width) and robust construction make it ideal for space-constrained, high-performance mechanical systems demanding exceptional rigidity and operational stability.
1218J Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1218 | Standard bore diameter code (90mm) and series designation. |
| J | Specifies a CN group radial internal clearance (normal clearance), which is standard for most general applications. |
1218J Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and steep contact angle provide superior high rigidity, enabling the bearing to support substantial combined loads (radial and bidirectional axial) with minimal deflection.
- Optimized for Performance: The pressed steel cage ensures stable ball guidance, contributing to smooth operation. The CN radial internal clearance offers a versatile balance for various operating conditions.
- Ready-to-Install: The bearing is pre-lubricated, simplifying installation and providing immediate protection during the initial run-in period.
- Material Integrity: Constructed from chrome steel for rings, balls, and cage, ensuring high durability, wear resistance, and a long service life under demanding conditions.
1218J Bearing Typical Application Areas
This double row angular contact ball bearing is ideally suited for a wide range of industrial machinery, including:
- Gearboxes and transmission systems
- Industrial Pumps and compressors
- Medium-duty machine tool spindles and components
- Material handling equipment
- Agricultural machinery
