7017 ACDGC/P4AL
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7017 ACDGC/P4AL
Basic Information
System of measurement
Metric
Weight
0.9 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
130 mm
Outside diameter tolerance
-0.004mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14332 lbf
Radial static load rating
13950 lbf
Limiting speed
17 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
4
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7017 ACDGC/P4AL Bearing Product Overview & Core Advantages
The 7017 ACDGC/P4AL is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a single bearing with a 25° contact angle and Moderate (Class C) preload, it is engineered to support combined loads—handling significant radial loads and axial loads in one direction simultaneously. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other high-reliability machinery where minimal runout and vibration are critical.
7017 ACDGC/P4AL Bearing Model Code Explained, Specifications & Naming Convention
The model number 7017 ACDGC/P4AL provides a detailed technical specification. Below is a breakdown of its key components:
- 7017: Basic bearing series, indicating a metric bore diameter of 85 mm, outside diameter of 130 mm, and width of 22 mm.
- AC: Angular Contact design with a 25° contact angle.
- D: Signifies a high ball complement, increasing load capacity.
- GC: Indicates a specific internal clearance and preload group (Moderate preload / Class C).
- P4A: Denotes an ultra-precision tolerance class superior to ABEC 7, with strict limits on bore, outside diameter, and width tolerances.
- L: The bearing is Lubricated with a standard grease suitable for the specified temperature range.
7017 ACDGC/P4AL Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and optimized internal geometry enable the bearing to withstand high combined radial and axial loads. The Moderate preload (Class C) eliminates internal clearance, providing superior system stiffness and precise shaft positioning, which is critical for machining accuracy.
- Precision and High-Speed Performance: Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy. The phenolic resin cage is lightweight and robust, contributing to smooth operation and enabling a high limiting speed of 17,000 rpm. It is also Universal Matchable (SU), allowing for precise duplex set configurations.
- Durability and Reliability: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue life and wear resistance. The pre-applied lubrication ensures immediate operational readiness and reliable performance within a temperature range of -30°C to 110°C.
7017 ACDGC/P4AL Bearing Typical Application Areas
This precision bearing is ideally suited for applications where high speed, rigidity, and accuracy are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines and precision boring heads.
- High-Frequency Motors: Spindles for electric motors requiring minimal vibration.
- Medical Equipment: High-speed rotors in dental handpieces and centrifuges.
