S7015 ACD/P4ATBTB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7015 ACD/P4ATBTB
Basic Information
System of measurement
Metric
Weight
1.92 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.004mm to 0
Width
60 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
24300 lbf
Radial static load rating
31500 lbf
Limiting speed
22 X 1000 rpm
Lubrication
Grease
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
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In Stock
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S7015 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The S7015 ACD/P4ATBTB is a precision angular contact ball bearing configured in a triplex back-to-back (TBT) matched set. This high-performance arrangement is engineered to deliver exceptional system rigidity and superior capacity for handling combined loads (radial and axial loads simultaneously). Manufactured to a P4A super-precision tolerance class and featuring a light preload (Class B), it is specifically designed for applications demanding the highest levels of rotational accuracy, high-speed capability, and operational reliability in compact installations.
S7015 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
The model designation S7015 ACD/P4ATBTB provides detailed technical specifications:
- S7015: Basic bearing series and size designation (75mm bore, 115mm OD).
- A: Denotes a 25° contact angle, optimized for carrying higher axial loads.
- CD: Indicates a triplex back-to-back (TBT) matched set of three bearings.
- P4A: Specifies the super-precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy.
- TBT: Reiterates the Triplex Back-to-Back mounting arrangement.
- Sealed & Grease Lubricated: The bearing is sealed and pre-lubricated for long-term, maintenance-free operation.
S7015 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The triplex back-to-back (TBT) configuration creates a highly rigid bearing system capable of withstanding heavy combined loads and moments. The 25° contact angle further enhances axial load carrying capacity.
- High-Speed Performance: The lightweight, durable phenolic cage and optimized internal geometry contribute to stable operation at high rotational speeds, with a limiting speed of 22,000 rpm.
- Super-Precision Accuracy: Manufactured to P4A tolerance standards, this bearing ensures minimal runout and vibration, which is critical for applications requiring high positional accuracy.
- Long Service Life & Reliability: The combination of chrome steel rings and balls, a matched set for optimal load distribution, and factory-applied grease lubrication ensures extended service life and reliable, maintenance-free operation within a temperature range of -30°C to 110°C.
S7015 ACD/P4ATBTB Bearing Typical Application Areas
This bearing is ideally suited for high-demand applications in:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Industrial Pumps and Compressors.
- High-Frequency Machining Centers.
- Advanced Robotics and Automation Equipment.
- Any application requiring a compact, pre-assembled, high-rigidity precision bearing solution.
