S7013 CD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7013 CD/P4ADBB
Basic Information
System of measurement
Metric
Weight
0.87 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
36 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
15210 lbf
Radial static load rating
16875 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
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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S7013 CD/P4ADBB Bearing Product Overview & Core Advantages
The S7013 CD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Light / Class B specifications, delivering superior system stability and resistance to moment loads. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-speed spindles and other demanding machinery where high rigidity and minimal runout are critical.
S7013 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model designation S7013 CD/P4ADBB provides detailed technical specifications:
- S70: Denotes a series of high-precision angular contact ball bearings.
- 13: Specifies the bore diameter code (65 mm).
- C: Indicates a 15° contact angle, optimized for high-speed operation with combined loads.
- D: Signifies that the bearing is one of a duplex pair.
- P4A: Represents an extremely high tolerance class for superior dimensional and running accuracy.
- DB: Stands for Duplex Back-to-Back arrangement, which provides high rigidity against overturning moments.
S7013 CD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) configuration creates a rigid bearing system capable of withstanding combined radial and axial loads from both directions, as well as moment loads. The light preload eliminates internal clearance for precise shaft positioning.
- Precision & High-Speed Performance: Manufactured to P4A tolerance standards with a 15° contact angle and a lightweight phenolic resin cage, this bearing is engineered for smooth operation at high rotational speeds (36,000 rpm limiting speed).
- Durability & Reliability: Constructed from high-grade chrome steel for both rings and balls, the bearing offers a high dynamic load rating of 15,210 lbf and excellent fatigue life. The sealed design with grease lubrication protects against contamination and provides long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S7013 CD/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is primarily used in applications demanding the highest levels of accuracy and speed, including:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Robotic Drives
- Medical and Dental Equipment Spindles
