71822 CD/P4TBTL
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71822 CD/P4TBTL
Basic Information
System of measurement
Metric
Weight
1.52 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
15502 lbf
Radial static load rating
27450 lbf
Limiting speed
16 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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71822 CD/P4TBTL Bearing Product Overview & Core Advantages
The 71822 CD/P4TBTL is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This bearing is supplied as a triplex back-to-back (TBT) matched set, providing superior stability and the ability to withstand combined loads (radial and axial). With a P4 tolerance class and a phenolic cage optimized for high-speed operation, it is engineered for high-performance machinery requiring maximum precision and reliability.
71822 CD/P4TBTL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing designation, indicating a metric series angular contact ball bearing with a 110 mm bore, 140 mm OD, and 48 mm width. |
| CD | Indicates a specific internal design and contact angle (15°), optimized for high rigidity and precise operation. |
| P4 | Denotes a high-precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
| TBT | Specifies a Triplex Back-to-Back matched arrangement of three bearings, providing high moment stiffness. |
| L | Indicates the bearing is lubricated from the factory. |
71822 CD/P4TBTL Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, making it ideal for precision spindles.
- Superior Load Capacity: The 15° contact angle and robust construction enable the bearing to handle significant combined radial and axial loads simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, allowing for a high limiting speed of 16,000 rpm. The open design and factory-applied lubrication facilitate efficient cooling and minimal friction.
- Precision Engineering: Manufactured to P4 tolerance class with extremely tight bore, OD, and width tolerances, this bearing ensures minimal runout and vibration for superior operational accuracy.
71822 CD/P4TBTL Bearing Typical Application Areas
The 71822 CD/P4TBTL is engineered for the most demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes: Where high rigidity and accurate shaft positioning are critical.
- High-Frequency Motors and Spindles: Applications requiring minimal vibration at elevated rotational speeds.
- Industrial Pumps and Compressors: For handling combined loads with high reliability.
