As a professional manufacturer specializing in high-precision angular contact ball bearings, we proudly present our upgraded 7040AC/P2QBCA full complement angular contact ball bearing-a high-performance bearing solution designed for demanding applications where speed, precision, and thermal stability are critical.
This model features a full complement design without cages, and is specially equipped with hybrid ceramic balls (silicon nitride) in place of traditional steel balls. The bearing achieves P2 grade precision, offering superior rotational accuracy, low friction, and exceptional wear resistance.
Bearing Type: 7040AC/P2QBCA
d: 200 mm inner diameter (d),
D: 310 mm outer diameter (D),
B: 51 mm width (B).
AC: This indicates a contact angle of 25 degrees.
P2: This denotes the precision rating of the bearing, which is the highest level of precision (P2) according to the DIN standard.
Product Features:
01
Full Complement Design
Without cages, this structure maximizes the number of rolling elements, offering higher load-carrying capacity-ideal for high-rigidity, high-stiffness requirements.
02
Ultra-High Precision – P2 Grade
Manufactured with strict tolerance control, the 7040AC/P2QBCA meets ISO P2 (ABEC 9) standards, ensuring the highest levels of running accuracy.
03
Stable Performance at High Temperatures
The ceramic material has low thermal conductivity and high hardness, which helps maintain precision and minimize expansion even under elevated temperatures.
04
Diameter Range Expertise: 100mm – 750mm
We specialize in precision angular contact ball bearings across this size range, ensuring custom solutions for both small and large-scale machinery.
Ceramic Ball Technology
Replacing steel balls with premium-grade silicon nitride (Si3N4) ceramic balls provides several advantages:
structure
60% less weight than steel
structure
Higher speed capabilities
structure
Excellent resistance to wear, corrosion, and thermal expansion
structure
Low centrifugal force and reduced friction during high-speed operation
Typical Applications
Full complement angular contact ball bearings with ceramic balls are ideal for high-performance and high-speed applications, including:
- High-speed machine tool spindles
- Aerospace equipment requiring lightweight, low-thermal-expansion components
- Semiconductor manufacturing systems
- High-frequency spindle motors and electro-mechanical drives
- Robotics and automation systems demanding low vibration and high stiffness
- Vacuum environments where lubrication is limited
Hot Tags: full complement angular contact ball bearings with ceramic balls 7040ac/p2qbca, China, manufacturers, factory, customized, for sale, Angular Contact Ball Bearing Assembly In Pairs, Double Row Angular Contact Ball Bearings, double row thrust ball bearing 234436, QJ 1040 N2MA, QJ 1240 N2MA, QJ 1984 MA