S7212 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7212 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.82 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.008mm to 0
Width
22 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
12870 lbf
Radial static load rating
10462 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 631.95
/ each
In Stock
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S7212 CD/P4A Bearing Product Overview & Core Advantages
The S7212 CD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high rigidity. This single-row bearing features a 15° contact angle and is supplied with a preload, making it ideally suited for managing combined loads where high axial stiffness is critical. Manufactured to the exacting P4 (ABEC-7) tolerance class, it delivers superior running accuracy, low noise, and vibration, ensuring reliable performance in high-speed and high-precision machinery.
S7212 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7212 CD/P4A provides detailed technical specifications:
- S7: Indicates a series of high-precision angular contact ball bearings.
- 212: Denotes the standard size, with a 60 mm bore, 110 mm outside diameter, and 22 mm width.
- CD: Specifies a matched arrangement with a specific internal clearance and preload level for optimized performance.
- P4A: Defines the tolerance class. P4 is equivalent to ABEC-7, indicating very high precision. The "A" suffix may denote a specific contact angle or internal design modification.
S7212 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and applied preload provide superior axial rigidity, minimizing deflection under load and ensuring precise shaft positioning. The P4 tolerance class guarantees exceptional dimensional and running accuracy.
- Optimized Load Capacity: Engineered to support significant combined radial and axial loads simultaneously. With a dynamic load rating of 12,870 lbf and a static load rating of 10,462 lbf, it offers robust performance in demanding conditions.
- High-Speed Capability: The lightweight and durable phenolic resin cage ensures stable operation and guides the balls effectively, contributing to a high limiting speed of 13,000 rpm.
- Ready-to-Use Reliability: The bearing is pre-lubricated and sealed, protecting against contamination and providing long-term, maintenance-free operation within its specified temperature range.
S7212 CD/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors and Spindles
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
