S7005 ACD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7005 ACD/P4ADBA
Basic Information
System of measurement
Metric
Weight
0.16 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3330 lbf
Radial static load rating
2250 lbf
Limiting speed
100.5 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
Extra light / Class A
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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S7005 ACD/P4ADBA Bearing Product Overview & Core Advantages
The S7005 ACD/P4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rigidity and running accuracy. This back-to-back (DB) matched set features an extra light preload (Class A) and a P4A super-precision tolerance, making it ideal for high-speed spindles and other demanding machinery. Its duplex configuration enables it to support combined radial and axial loads simultaneously from both directions, providing stable and reliable performance in high-precision rotational systems.
S7005 ACD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
The model number S7005 ACD/P4ADBA is decoded as follows:
- S7005: Basic bearing series and size designation (25mm bore, 47mm OD).
- A: Denotes a 25° contact angle, optimized for supporting high axial loads.
- C: Indicates the bearing is supplied as part of a universal matched duplex set.
- D: Specifies the Duplex Back-to-Back (DB) mounting arrangement.
- P4A: The tolerance class, signifying super-precision levels for high-speed, high-accuracy applications.
- DB: Confirms the back-to-back duplex configuration.
- A: Indicates the extra light preload (Class A) applied to the matched set.
S7005 ACD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning.
- Superior Load Capacity: With a 25° contact angle and duplex design, this bearing set is engineered to handle significant combined radial and bidirectional axial loads.
- High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and smooth operation at the high limiting speed. The P4A precision and optimized internal geometry further enhance high-speed capability.
- Sealed & Pre-Lubricated: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is ready for immediate use, offering long-term, maintenance-free operation within its specified temperature range.
S7005 ACD/P4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is typically employed in:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Medical and Laboratory Instrumentation
