71916 ACE/P4ATBTL
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71916 ACE/P4ATBTL
Basic Information
System of measurement
Metric
Weight
1.08 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
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10530 lbf
Radial static load rating
11475 lbf
Limiting speed
17 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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71916 ACE/P4ATBTL Bearing Product Overview & Core Advantages
The 71916 ACE/P4ATBTL is a precision angular contact ball bearing specifically designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set delivers superior performance in handling combined loads (radial and axial) simultaneously. Manufactured to P4A tolerance class, it ensures minimal runout and high rotational accuracy, making it ideal for high-speed spindles and precision machinery where reliability is paramount.
71916 ACE/P4ATBTL Bearing Model Code Explained, Specifications & Naming Convention
The model number 71916 ACE/P4ATBTL is decoded as follows:
- 71916: Basic bearing designation (Light series, 80mm bore, 110mm OD).
- ACE: 25° contact angle and internal design optimized for high rigidity.
- P4A: High precision tolerance class (exceeding ABEC 7/ISO P4).
- TBT: Triplex Back-to-Back arrangement of three matched bearings.
- TL: Indicates the set is pre-loaded and ready for installation as a matched unit.
71916 ACE/P4ATBTL Bearing Structural Features & Performance Benefits
- Exceptional Rigidity & Load Capacity: The triplex back-to-back configuration creates an extremely rigid bearing system capable of withstanding heavy combined loads and moments. The 25° contact angle is optimized for high axial load capacity.
- High-Speed Capability: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to the high limiting speed of 17,000 rpm. This makes it suitable for high-speed applications.
- Precision Performance: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring precise shaft positioning and smooth, quiet operation.
- Matched Set Reliability: Supplied as a pre-configured triplex set that is manufactured, selected, and pre-loaded to work in perfect unison, guaranteeing optimal performance and simplifying installation.
71916 ACE/P4ATBTL Bearing Typical Application Areas
This high-precision bearing set is engineered for use in:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motors.
- Industrial Pumps and Compressors requiring high rigidity.
- Aerospace and Medical Equipment positioning systems.
