Ceramic Angular Contact Ball Bearing

Ceramic Angular Contact Ball Bearing

QIBR Precision Angular Contact Ball Bearing Selection Guide

Precision angular contact ball bearings are available in several size series, including 70, 72, 718, 719, BNR, BER, BGR, TAC, etc., with inner diameters ranging from 6mm to 360mm. Bearings with the same inner diameter can have different outer diameters and widths. When selecting precision angular contact ball bearings, users can follow these guidelines:

  • If the radial space at the installation location is limited, or the spindle requires high speed, it is recommended to choose a series with a smaller outer diameter, such as our smallest bearing, QB706C.

  • If the spindle is subjected to a large load, operates at medium speed, and installation space is not limited, a series with a larger outer diameter and width, such as our largest bearing, QB71972E, can be selected.

Standard:

GB,ASTM/AISI,ГОСТ,BS,JIS,NF,DIN / VDEh,DIN / VDEh

Range of Inner Ring Dia.:

8mm-100mm

Range of Outer Ring Dia.:

22mm-150mm

Range of Weight:

0.011kg-1.24kg

Material

Silicon Nitride (Si3N4), Zirconia (ZrO2), Silicon Carbide (Sic), Alumina

Brand:

QIBR/OEM/Neutral

Package:

QIBR/Standard Industrial Package/OEM

Applications:

Machine tool spindle, Turbocharger, Robot, Aerospace, Medical equipment

Pairing Method:

DB, DF, DT, DBD, DBB, SU

Ceramic Angular Contact Ball Bearing

QIBR

Model Selection

Filters

NO. Product Product Number Outer Diameter (D) Inner Diameter (d) Width (B) Mass (M) Chamfer(rmin) Chamfer(r1min)
1 40 40 BNC 10 SN24 68mm 40mm 15mm 0.198kg 1mm 0.6mm
2 45 45 BNC 10 SN24 75mm 45mm 16mm 0.242kg 1mm 0.6mm
3 50 50 BNC 10 SN24 80mm 50mm 16mm 0.262kg 1mm 0.6mm
4 55 55 BNC 10 SN24 90mm 55mm 18mm 0.368kg 1.1mm 0.6mm
5 60 60 BNC 10 SN24 95mm 60mm 18mm 0.419kg 1.1mm 0.6mm
6 65 65 BNC 10 SN24 100mm 65mm 18mm 0.451kg 1.1mm 0.6mm
7 70 70 BNC 10 SN24 110mm 70mm 20mm 0.597kg 1.1mm 0.6mm
8 75 75 BNC 10 SN24 115mm 75mm 20mm 0.63kg 1.1mm 0.6mm
9 80 80 BNC 10 SN24 125mm 80mm 22mm 0.861kg 1.1mm 0.6mm
10 85 85 BNC 10 SN24 130mm 85mm 22mm 0.901kg 1.1mm 0.6mm
11 90 90 BNC 10 SN24 140mm 90mm 24mm 1.14kg 1.5mm 1mm
12 95 95 BNC 10 SN24 145mm 95mm 24mm 1.19kg 1.5mm 1mm
13 100 100 BNC 10 SN24 150mm 100mm 24mm 1.24kg 1.5mm 1mm
14 35 35 BNC 19 SN24 55mm 35mm 10mm 0.066kg 0.6mm 0.3mm
15 40 40 BNC 19 SN24 62mm 40mm 12mm 0.105kg 0.6mm 0.3mm
16 45 45 BNC 19 SN24 68mm 45mm 12mm 0.125kg 0.6mm 0.3mm
17 50 50 BNC 19 SN24 72mm 50mm 12mm 0.126kg 0.6mm 0.3mm
18 55 55 BNC 19 SN24 80mm 55mm 13mm 0.179kg 1mm 0.6mm
19 60 60 BNC 19 SN24 85mm 60mm 13mm 0.19kg 1mm 0.6mm
20 65 65 BNC 19 SN24 90mm 65mm 13mm 0.206kg 1mm 0.6mm
21 70 70 BNC 19 SN24 100mm 70mm 16mm 0.345kg 1mm 0.6mm
23 80 80 BNC 19 SN24 110mm 80mm 16mm 0.385kg 1mm 0.6mm
24 85 85 BNC 19 SN24 120mm 85mm 18mm 0.564kg 1.1mm 0.6mm
25 90 90 BNC 19 SN24 125mm 90mm 18mm 0.576kg 1.1mm 0.6mm
26 95 95 BNC 19 SN24 130mm 95mm 18mm 0.604kg 1.1mm 0.6mm
27 100 100 BNC 19 SN24 140mm 100mm 20mm 0.796kg 1.1mm 0.6mm
28 8 8 BNT 1OF SN24 22mm 8mm 7mm 0.011kg 0.3mm 0.15mm
29 10 10 BNT 1OF SN24 26mm 10mm 8mm 0.016kg 0.3mm 0.15mm
30 12 12 BNT 1OF SN24 28mm 12mm 8mm 0.018kg 0.3mm 0.15mm
31 15 15 BNT 1OF SN24 32mm 15mm 9mm 0.026kg 0.3mm 0.15mm
32 17 17 BNT 1OF SN24 35mm 17mm 10mm 0.033kg 0.3mm 0.15mm
33 20 20 BNT 1OF SN24 42mm 20mm 12mm 0.058kg 0.6mm 0.3mm
34 25 25 BNT 1OF SN24 47mm 25mm 12mm 0.067kg 0.6mm 0.3mm
35 30 30 BNT 1OF SN24 55mm 30mm 13mm 0.097kg 1mm 0.6mm

Characteristics and advantages of QIBR ceramic angular contact ball bearings

  • QIBR ceramic angular contact ball bearings have high temperature and cold resistance, and ceramic materials can maintain their performance in high and low temperature environments, making them suitable for applications under extreme temperature conditions.
  • QIBR ceramic angular contact ball bearings have corrosion resistance, and ceramic bearings have good chemical inertness, which can resist the erosion of corrosive media and extend their service life.
  • QIBR ceramic angular contact ball bearings have a low coefficient of friction. Ceramic bearings have a lower coefficient of friction, which helps improve operating efficiency, reduce energy loss, and lower wear.
  • QIBR ceramic angular contact ball bearings have low density, with ceramic materials having a lower density than steel, reducing the overall weight of the bearing. This is particularly important in high-speed applications and helps to reduce energy consumption.
  • QIBR ceramic angular contact ball bearings have excellent mechanical properties. The ceramic has a high elastic modulus and is not easily deformed under stress, which helps to improve working speed and accuracy.
  • QIBR ceramic angular contact ball bearings have electrical insulation properties, and ceramic materials are non-conductive, making them suitable for use in applications that require electrical insulation.

Performance improvement and solution of QIBR ceramic angular contact ball bearings

  • QIBR ceramic angular contact ball bearings can greatly reduce friction and heat generation. The combination of ceramic rolling elements and steel inner and outer rings in hybrid ceramic bearings can significantly reduce the friction coefficient. This low friction characteristic reduces energy loss,  improving overall efficiency and reducing heat generation.
  • QIBR ceramic angular contact ball bearings extend the life of lubricants, and the superior performance of ceramic materials enables hybrid ceramic bearings to perform better under lubrication conditions, which can extend the service life of lubricants. This means that bearings can maintain efficient operation for a longer period of time, reducing maintenance frequency and costs.
  • QIBR ceramic angular contact ball bearings improve load-bearing capacity and service life. The high hardness and lightweight characteristics of ceramic rolling elements enable hybrid ceramic bearings to withstand higher loads while reducing the impact of centrifugal force on the bearings, extending their service life.
  • QIBR ceramic angular contact ball bearings are more adaptable to extreme working conditions, while hybrid ceramic bearings can still operate normally even under poor lubrication.
  • QIBR ceramic angular contact ball bearings are more suitable for high wear resistance working conditions. The hardness of ceramic materials is twice that of bearing steel, and the wear amount is only 50% of that of steel bearings.
  • QIBR ceramic angular contact ball bearings have excellent thermal stability, and ceramic bearings perform well at high temperatures. The maximum temperature limit for the use of silicon nitride can reach 800 ℃, far exceeding traditional bearing materials.
  • QIBR ceramic angular contact ball bearings have excellent chemical stability, and silicon nitride ceramics have good corrosion resistance to various acids and bases, making them suitable for use in harsh chemical environments.

The main application areas of QIBR ceramic angular contact ball bearings

  1. Machinery manufacturing fields: used for high-precision and high-rigidity moving parts such as machine tool spindles and industrial robots.
  2. Aerospace fields: Ceramic bearings are widely used in key components of aircraft due to their high-temperature resistance and low friction characteristics.
  3. Transportation fields: Used in automotive differential, wheel hub and transmission shaft and other components to improve vehicle performance and safety.
  4. Energy and power fields: In generators and motors, ceramic hybrid bearings provide effective electrical insulation and are suitable for environments with high acceleration and vibration.
  5. Chemical and metallurgical fields: In corrosive environments, the chemical stability of ceramic materials makes them ideal.