1209
1200 Series Self Aligning Ball Bearings
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Part No.
Part No.
1209
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Double Row
Weight
0.47 kg
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.012mm to 0
Bore type
Cylindrical
Outside diameter
85 mm
Outside diameter tolerance
-0.015mm to 0
Width
19 mm
Width tolerance
-0.12mm to 0
Chamfer dimension
1.1 mm
Inner Ring Dimensions
Shoulder diameter inner ring
57.51 mm
Outer Ring Dimensions
Shoulder diameter outer ring
72.5 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5152 lbf
Radial static load rating
1755 lbf
Limiting speed
11 X 1000 rpm
Lubrication
Lubricated
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1209 Bearing Product Overview & Core Advantages
The 1209 double row ball bearing is a precision metric bearing engineered for applications requiring robust support for radial loads. Its double row construction provides high rigidity and stability in a compact design with a 19 mm width. Manufactured from high-grade chrome steel and featuring a lightweight nylon cage, this bearing is optimized for reliable performance in demanding industrial environments. It comes pre-lubricated and is compliant with ROHS and REACH standards, ensuring both operational readiness and environmental safety.
1209 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Standard bearing designation indicating a double row deep groove ball bearing with a 45 mm bore and 85 mm outside diameter. |
| Open (Seal Type) | No contact seals, offering minimal friction and optimal for high-speed applications. Requires a clean operating environment or external sealing. |
| CN (Radial Internal Clearance) | Standard normal radial internal clearance group, suitable for most common operating conditions and fits. |
| Lubricated | The bearing is supplied with a general-purpose grease, ready for immediate use and providing initial protection against wear. |
1209 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball design significantly increases the radial dynamic load rating (5152 lbf) and provides superior stability, making it ideal for applications with significant radial forces.
- Optimized for Speed: The lightweight nylon cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 11,000 rpm.
- Precision Dimensions: Manufactured with tight bore and outside diameter tolerances, ensuring precise fits and reliable performance in high-precision assemblies.
- Ready-to-Install: The pre-lubricated, open design simplifies installation and is immediately operational, reducing assembly time and complexity.
1209 Bearing Typical Application Areas
This double row ball bearing is widely used in various industrial machinery and equipment, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery requiring robust radial load support
