7216 ACD/TBTBVQ253
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7216 ACD/TBTBVQ253
Basic Information
System of measurement
Metric
Weight
4.38 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
78 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
39150 lbf
Radial static load rating
48600 lbf
Limiting speed
28 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
Light / Class B
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
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7216 ACD/TBTBVQ253 Bearing Product Overview & Core Advantages
The 7216 ACD/TBTBVQ253 is a precision angular contact ball bearing supplied as a triplex back-to-back (TBT) matched set. Engineered for high rigidity and exceptional performance in demanding applications, this set is designed to handle significant combined loads (radial and axial) simultaneously. Manufactured to a P4A tolerance class and featuring a light preload (Class B), it delivers the running accuracy and stability required for high-speed spindles and precision machinery. The phenolic cage and optimized 25° contact angle contribute to its high-speed capabilities and smooth operation.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7216 | Basic bearing series and size designation (80mm bore, 140mm OD). |
| ACD | Angular Contact Design, optimized for combined loads. |
| TBT | Triplex Back-to-Back arrangement. Three bearings are matched and mounted back-to-back. |
| BVQ253 | Manufacturer's specific code for a light preload (Class B) and P4A precision tolerance. |
7216 ACD/TBTBVQ253 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The triplex back-to-back (TBT) configuration creates an extremely rigid bearing system, capable of supporting high combined radial and axial loads and resisting moment loads. This makes it ideal for applications where shaft deflection must be minimized.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class, this set ensures superior running accuracy. The phenolic cage and 25° contact angle are optimized for a high limiting speed of 28,000 rpm, reducing friction and heat generation.
- Optimized Preload: The set is supplied with a light preload (Class B) already applied, eliminating the need for complex preload adjustments during installation and ensuring immediate, precise performance from startup.
- Durable Construction: Components made from chrome steel provide high fatigue life and durability, ensuring long-term reliability in continuous operation.
7216 ACD/TBTBVQ253 Bearing Typical Application Areas
This precision triplex bearing set is specifically designed for high-performance applications requiring maximum rigidity and speed, including:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Grinding Spindles
- High-Frequency Machining Centers
- Industrial Pumps and Compressors
- Other precision rotary equipment where exceptional accuracy and stiffness are critical.
