7216 CD/P4ADBC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7216 CD/P4ADBC
Basic Information
System of measurement
Metric
Weight
2.92 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
52 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
31500 lbf
Radial static load rating
33750 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
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.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7216 CD/P4ADBC Bearing Product Overview & Core Advantages
The 7216 CD/P4ADBC is a precision duplex angular contact ball bearing designed for applications demanding exceptional rigidity and rotational accuracy. This metric system bearing features a back-to-back (DB) matched arrangement with a Moderate (Class C) preload, enabling it to withstand combined radial and axial loads from both directions. Manufactured to a P4A tolerance class, it delivers superior running accuracy and is ideal for high-speed, high-rigidity spindles and other precision machinery where uncompromising performance is critical.
7216 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
The model number 7216 CD/P4ADBC is decoded as follows:
- 7216: Basic bearing series, denoting a light preload angular contact bearing with a 80mm bore, 140mm OD, and 52mm width.
- C: Represents a 15° contact angle, optimized for high-speed operation and moderate axial load capacity.
- D: Indicates the bearing is part of a duplex pair.
- P4A: Denotes an extremely high tolerance class for superior dimensional and running accuracy.
- DB: Specifies the Duplex Back-to-Back mounting arrangement, which provides high moment rigidity.
- C: Indicates a Moderate preload (Class C) is applied to the matched set.
7216 CD/P4ADBC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The back-to-back (DB) duplex arrangement creates a wide effective spread, significantly increasing the bearing's resistance to moment loads and providing exceptional operational stiffness.
- Superior Load Capacity: The 15° contact angle and duplex design enable the bearing to handle significant combined radial and bidirectional axial loads simultaneously.
- Precision & High-Speed Performance: Manufactured to P4A tolerance standards and featuring a lightweight, robust phenolic resin cage, this bearing ensures smooth operation and is capable of achieving a limiting speed of 28,000 rpm.
- Optimized Material & Lubrication: Constructed from chrome steel for both rings and balls, ensuring high durability and fatigue resistance. The bearing is pre-lubricated for immediate service and reliable operation within a temperature range of -30°C to 110°C.
7216 CD/P4ADBC Bearing Typical Application Areas
This high-precision duplex bearing is engineered for the most demanding applications, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- High-Speed Robotic Drives
