Angular contact ball bearings

SKF Explorer Series angular contact ball bearings are designed to maximize the effects of lubrication and minimize the effects of friction, wear and contamination. These bearings are able to provide an average of three times longer service life under poor lubrication and contamination conditions. They are particularly suitable for pump and compressor applications. Every component of the SKF Explorer Series angular contact ball bearings has been redesigned to improve temperature stability, reduce failures caused by contamination, and increase bearing service life under poor lubrication conditions. Angular contact ball bearings are designed to accommodate radial and axial loads acting simultaneously. The raceways of the inner and outer rings move relative to each other in the direction of the bearing axis. The axial load carrying capacity of the bearing increases with the increase in the contact angle (α), which is between a straight line connecting the contact points of the ball and raceway in the radial plane and another straight line perpendicular to the bearing axis. Common design types include single-row and double-row angular contact ball bearings and four-point contact ball bearings. Double-row angular contact ball bearings have better rigidity and can withstand overturning moments. They are particularly suitable for applications with high rigidity requirements, such as the front wheel hub of a car.

In addition, SKF also provides single-direction and double-direction angular contact thrust ball bearings for special applications such as machine tools.

SKF Angular Contact Ball Bearings are precision-engineered components designed to handle combined radial and axial loads in a single direction, making them indispensable in high-speed, high-accuracy applications. Characterized by a defined contact angle between the raceways and balls, these bearings excel in scenarios requiring rigid axial guidance, such as machine tool spindles, automotive systems, and robotics. SKF’s advanced manufacturing techniques and material science ensure superior performance, durability, and adaptability across industries.

Applications & Industry Use Cases

SKF Angular Contact Ball Bearings are critical in industries requiring precision, speed, and reliability:

  1. Machine Tools & Robotics

CNC Spindles: High-speed, high-accuracy machining with minimal runout.

Robotic Arms: Precise axial load handling in automated assembly lines.

  1. Automotive & Aerospace

Wheel Hubs: Support combined loads in electric and high-performance vehicles.

Jet Engine Components: Withstand extreme temperatures and speeds in turbine systems.

  1. Industrial Machinery

Pumps & Compressors: Handle axial thrust in hydraulic and HVAC systems.

Gearboxes: Ensure smooth power transmission in wind turbines and heavy machinery.

  1. Medical & Semiconductor

High-Speed Centrifuges: Corrosion-resistant models for sterile environments.

Wafer Handling Robots: Precision movement in cleanroom settings.

  1. Energy & Renewables

Electric Motors: Efficient load management in EV drivetrains.

Solar Trackers: Enable precise angular adjustments in solar farms.

Why Choose SKF Angular Contact Ball Bearings?

  1. Engineering Excellence

SKF Explorer® Series: Enhanced metallurgy and surface finish for 50% higher load ratings and extended fatigue life.

Sensor-Ready Bearings: Integrated sensors for real-time temperature and vibration monitoring.

  1. Custom Solutions

Tailored Designs: Custom contact angles, materials, and coatings for unique operational needs (e.g., vacuum environments, high corrosion resistance).

  1. Global Reliability

Rigorous Testing: Each bearing undergoes noise, vibration, and load testing to meet ISO 9001 standards.

Sustainability Focus: Recyclable materials and energy-efficient manufacturing processes.

  1. Cost Efficiency

Reduced Downtime: Long service intervals and easy installation lower total ownership costs.

Energy Savings: Low-friction designs reduce power consumption by up to 20% in motor applications.

SKF Angular Contact Ball Bearings are the epitome of precision and versatility, offering unmatched performance in high-speed, high-load applications. From CNC machining to aerospace systems, their advanced design, durability, and adaptability ensure operational excellence across industries. Backed by SKF’s global expertise and commitment to innovation, these bearings empower engineers to push the boundaries of speed, accuracy, and efficiency. Whether for OEM integration or maintenance upgrades, SKF Angular Contact Ball Bearings deliver a future-proof solution for the world’s most demanding mechanical challenges.

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Designation Bore diameter Outside diameter Width Basic dynamic load rating Limiting speed Mass
QJ 212 N2MA/C4B20
60.0 mm
110.0 mm
22.0 mm
96.5 kN
10000.0 r/min
0.965 kg
QJ 213 MA/C3
65.0 mm
120.0 mm
23.0 mm
110.0 kN
9500.0 r/min
1.22 kg
QJ 213 N2MA/C4
65.0 mm
120.0 mm
23.0 mm
110.0 kN
9500.0 r/min
1.22 kg
QJ 214 MA/C3
70.0 mm
125.0 mm
24.0 mm
120.0 kN
9000.0 r/min
1.33 kg
QJ 215 MA/C2L
75.0 mm
130.0 mm
25.0 mm
125.0 kN
8500.0 r/min
1.45 kg
QJ 216 N2MA
80.0 mm
140.0 mm
26.0 mm
146.0 kN
8000.0 r/min
1.78 kg
QJ 218 N2MA
90.0 mm
160.0 mm
30.0 mm
186.0 kN
7000.0 r/min
2.74 kg
QJ 218 N2MA/C4B20
90.0 mm
160.0 mm
30.0 mm
186.0 kN
7000.0 r/min
2.74 kg
QJ 219 N2MA/C4B20
95.0 mm
170.0 mm
32.0 mm
212.0 kN
6700.0 r/min
3.3 kg
QJ 222 N2MA/C3
110.0 mm
200.0 mm
38.0 mm
280.0 kN
5600.0 r/min
5.55 kg
QJ 224 N2MA/C4B20
120.0 mm
215.0 mm
40.0 mm
300.0 kN
5000.0 r/min
6.58 kg
QJ 226 N2MA/C4B20
130.0 mm
230.0 mm
40.0 mm
310.0 kN
4800.0 r/min
7.44 kg
QJ 228 N2MA/C3
140.0 mm
250.0 mm
42.0 mm
345.0 kN
4300.0 r/min
9.36 kg
QJ 228 N2MA/C4B20
140.0 mm
250.0 mm
42.0 mm
345.0 kN
4300.0 r/min
9.36 kg
QJ 232 N2MA
160.0 mm
290.0 mm
48.0 mm
450.0 kN
3800.0 r/min
14.7 kg
QJ 238 N2MA
190.0 mm
340.0 mm
55.0 mm
510.0 kN
3200.0 r/min
23.2 kg
QJ 306 LA/P63
30.0 mm
72.0 mm
19.0 mm
49.4 kN
17000.0 r/min
0.387 kg
QJ 307 MA
35.0 mm
80.0 mm
21.0 mm
64.0 kN
15000.0 r/min
0.555 kg
QJ 308 MA/C3
40.0 mm
90.0 mm
23.0 mm
78.0 kN
14000.0 r/min
0.771 kg
QJ 308 N2MA/C2L
40.0 mm
90.0 mm
23.0 mm
78.0 kN
14000.0 r/min
0.771 kg
PER.5203RYY2
16.256 mm
40.0 mm
44.12 mm
14.2 kN
0.22 kg
PER.5204RRP51
16.129 mm
47.0 mm
29.175 mm
19.1 kN
0.22 kg
PER.5204RRP52
20.0 mm
47.0 mm
26.3 mm
17.9 kN
0.185 kg
PER.5206RRP50
22.15 mm
62.0 mm
37.0 mm
29.0 kN
0.53 kg