7214 CD/P4ADBG37
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7214 CD/P4ADBG37
Basic Information
System of measurement
Metric
Weight
2.22 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
125 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
15.875 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
25200 lbf
Radial static load rating
26100 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
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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7214 CD/P4ADBG37 Bearing Product Overview & Core Advantages
The 7214 CD/P4ADBG37 is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This duplex back-to-back (DB) arrangement provides superior stability and is capable of supporting combined loads (radial and axial loads simultaneously). Manufactured to a P4A tolerance class, it ensures ultra-precise running accuracy and high operational reliability. The preloaded matched set delivers high system rigidity, making it ideal for high-speed spindles and other precision machinery.
7214 CD/P4ADBG37 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7214 | Basic bearing series, with 70mm bore, 125mm OD, 24mm single width |
| C | 15° contact angle |
| D | Duplex Back-to-Back (DB) matched arrangement |
| P4A | High precision tolerance class (exceeding ABEC 7) |
| DB | Duplex Back-to-Back arrangement designation |
| G37 | Preload level specification |
7214 CD/P4ADBG37 Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide effective spread between load centers, significantly increasing moment stiffness and providing exceptional resistance to tilting moments.
- Superior Load Capacity: The 15° contact angle and optimized internal geometry enable efficient handling of combined radial and axial loads in both directions.
- High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio, reduced centrifugal forces, and superior lubrication retention, contributing to the high limiting speed of 28,000 rpm.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring minimal runout and vibration for precision applications.
- Premium Materials: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and long service life under demanding conditions.
7214 CD/P4ADBG37 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring precision and rigidity
- Precision Gearboxes: Industrial transmissions demanding high accuracy and load capacity
- High-Frequency Motors: Spindle motors and other high-speed rotary applications
- Medical Equipment: Dental handpieces and surgical tool drives
- Aerospace Components: Guidance systems and auxiliary power units
- Robotics: Precision joints and rotary actuators
