BNR 19XE&BER 19XE

Specifications

Range of Inner Ring Dia.: 40-110mm
Range of Outer Ring Dia.: 62mm-150mm
Range of Weight: 0.106kg-0.804kg
Material: SKF3, ZGCr15, Stainless Steel, Heat-resistant Steel, Ceramic
Brand: QIBR/OEM/Neutral
Package: QIBR/Standard Industrial Package/OEM
Applications: Turbines, Pumps, Raiway Vehicles, Machine Tool Spindles, Motor Plants, Medical Equipment.
Pairing Method: DB, DF, DT, DBD, DBB, SU

QIBR Model Selection

QIBR Model Selection
No.	Product model	Basic dynamic load rating	Basic static load rating	Inner diameter	Outer diameter	Width
1	100BER19XE	36 kN	33.5 kN	100 mm	140 mm	15 mm
2	100BNR19XE	38 kN	35 kN	100 mm	140 mm	15 mm
3	105BER19XE	39 kN	39.5 kN	105 mm	145 mm	15 mm
4	105BNR19XE	41 kN	41 kN	105 mm	145 mm	15 mm
5	110BER19XE	37.5 kN	36.5 kN	110 mm	150 mm	15 mm
6	110BNR19XE	39 kN	38 kN	110 mm	150 mm	15 mm
7	40BER19XE	11 kN	7.35 kN	40 mm	62 mm	15 mm
8	40BNR19XE	11.5 kN	7.65 kN	40 mm	62 mm	15 mm
9	45BER19XE	11.6 kN	8.35 kN	45 mm	68 mm	15 mm
10	45BNR19XE	12.1 kN	8.7 kN	45 mm	68 mm	15 mm
11	50BER19XE	12.3 kN	9.35 kN	50 mm	72 mm	15 mm
12	50BNR19XE	12.8 kN	9.75 kN	50 mm	72 mm	15 mm
13	55BER19XE	13.8 kN	10.9 kN	55 mm	80 mm	15 mm
14	55BNR19XE	14.4 kN	11.4 kN	55 mm	80 mm	15 mm
15	60BER19XE	14 kN	11.5 kN	60 mm	85 mm	15 mm
16	60BNR19XE	14.6 kN	12 kN	60 mm	85 mm	15 mm
17	65BER19XE	14.5 kN	12.6 kN	65 mm	90 mm	15 mm
18	65BNR19XE	15.2 kN	13.2 kN	65 mm	90 mm	15 mm
19	70BER19XE	20.4 kN	17.3 kN	70 mm	100 mm	15 mm
20	70BNR19XE	21.3 kN	18.1 kN	70 mm	100 mm	15 mm
21	75BER19XE	20.7 kN	18.2 kN	75 mm	105 mm	15 mm
22	75BNR19XE	21.6 kN	19 kN	75 mm	105 mm	15 mm
23	80BER19XE	21 kN	19.1 kN	80 mm	110 mm	15 mm
24	80BNR19XE	22 kN	19.9 kN	80 mm	110 mm	15 mm
25	85BER19XE	28.1 kN	25.2 kN	85 mm	120 mm	15 mm

QIBR precision angular contact ball bearings offer solutions to enhance bearing rigidity, reduce noise and vibration, improve high-speed performance, and extend service life

QIBR precision angular contact ball bearings achieve significantly improved rigidity by using a larger number of large ceramic balls and a design with a larger groove curvature radius coefficient, which greatly increases the bearing's preload.
Noise and Vibration Reduction: To reduce bearing noise and vibration, the bearing raceway waviness and surface roughness are optimized, and a lightweight cage with optimized guided clearance is used.
Reliability and Longevity: The bearings are made from high-purity bearing steel, and the reliability and longevity are enhanced through austenite grain and carbide size refinement during the bearing blank processing. This greatly improves the contact fatigue life of the bearing. The surfaces of the inner and outer raceways undergo vacuum ion nitriding treatment, significantly enhancing the bearing's wear resistance.
High-Speed Performance: For high-speed applications, such as the QIBR QHCG... series bearings, a super high-speed design is used, with a speed factor DmN value of up to 3 million (oil-air lubrication) and 2 million (grease lubrication).

QIBR Precision Angular Contact Ball Bearings

High-speed precision angular contact ball bearings are available in various precision grades: standard precision is ISO Class 4 (ABEC 7), P4A (dimensional accuracy of ISO Class 4 with rotational accuracy higher than ISO Class 4), and ISO Class 2 (ABEC 9)

QIBR Precision Angular Contact Ball Bearings Preload Methods and Characteristics

Angular contact ball bearing axial preload can be categorized into two types based on the method of applying preload: positional preload and constant pressure preload.

Positional Preload: Positional preload refers to a method where the axial position of the bearing remains relatively unchanged during use. The required preload can be achieved by adjusting the width of the spacer between two bearings. Another approach involves grinding a certain amount of pre-deformation on the end faces of the inner or outer rings of a matched pair of bearings, achieving preload upon installation. Positional preload significantly enhances the rigidity of the bearing support system.
Constant Pressure Preload: Also known as constant force preload, this method ensures that the axial preload of the bearing remains constant during operation. The preload is achieved by adjusting the compression of a spring. Compared to positional preload, constant pressure preload is less effective at improving the axial rigidity of the support system under the same preload. However, with positional preload, the thermal expansion of the shaft and changes in radial clearance caused by temperature differences between the inner and outer rings can affect the amount of preload deformation, while constant pressure preload does not have these issues. Generally, positional preload is preferred when high rigidity is required, whereas constant pressure preload is more suitable for high-speed applications.

QIBR Model Selection

QIBR Model Selection
No.	Product model	Basic dynamic load rating	Basic static load rating	Inner diameter	Outer diameter	Width
1	100BER19XE	36 kN	33.5 kN	100 mm	140 mm	15 mm
2	100BNR19XE	38 kN	35 kN	100 mm	140 mm	15 mm
3	105BER19XE	39 kN	39.5 kN	105 mm	145 mm	15 mm
4	105BNR19XE	41 kN	41 kN	105 mm	145 mm	15 mm
5	110BER19XE	37.5 kN	36.5 kN	110 mm	150 mm	15 mm
6	110BNR19XE	39 kN	38 kN	110 mm	150 mm	15 mm
7	40BER19XE	11 kN	7.35 kN	40 mm	62 mm	15 mm
8	40BNR19XE	11.5 kN	7.65 kN	40 mm	62 mm	15 mm
9	45BER19XE	11.6 kN	8.35 kN	45 mm	68 mm	15 mm
10	45BNR19XE	12.1 kN	8.7 kN	45 mm	68 mm	15 mm
11	50BER19XE	12.3 kN	9.35 kN	50 mm	72 mm	15 mm
12	50BNR19XE	12.8 kN	9.75 kN	50 mm	72 mm	15 mm
13	55BER19XE	13.8 kN	10.9 kN	55 mm	80 mm	15 mm
14	55BNR19XE	14.4 kN	11.4 kN	55 mm	80 mm	15 mm
15	60BER19XE	14 kN	11.5 kN	60 mm	85 mm	15 mm
16	60BNR19XE	14.6 kN	12 kN	60 mm	85 mm	15 mm
17	65BER19XE	14.5 kN	12.6 kN	65 mm	90 mm	15 mm
18	65BNR19XE	15.2 kN	13.2 kN	65 mm	90 mm	15 mm
19	70BER19XE	20.4 kN	17.3 kN	70 mm	100 mm	15 mm
20	70BNR19XE	21.3 kN	18.1 kN	70 mm	100 mm	15 mm
21	75BER19XE	20.7 kN	18.2 kN	75 mm	105 mm	15 mm
22	75BNR19XE	21.6 kN	19 kN	75 mm	105 mm	15 mm
23	80BER19XE	21 kN	19.1 kN	80 mm	110 mm	15 mm
24	80BNR19XE	22 kN	19.9 kN	80 mm	110 mm	15 mm
25	85BER19XE	28.1 kN	25.2 kN	85 mm	120 mm	15 mm

QIBR precision angular contact ball bearings offer solutions to enhance bearing rigidity, reduce noise and vibration, improve high-speed performance, and extend service life

QIBR precision angular contact ball bearings achieve significantly improved rigidity by using a larger number of large ceramic balls and a design with a larger groove curvature radius coefficient, which greatly increases the bearing's preload.
Noise and Vibration Reduction: To reduce bearing noise and vibration, the bearing raceway waviness and surface roughness are optimized, and a lightweight cage with optimized guided clearance is used.
Reliability and Longevity: The bearings are made from high-purity bearing steel, and the reliability and longevity are enhanced through austenite grain and carbide size refinement during the bearing blank processing. This greatly improves the contact fatigue life of the bearing. The surfaces of the inner and outer raceways undergo vacuum ion nitriding treatment, significantly enhancing the bearing's wear resistance.
High-Speed Performance: For high-speed applications, such as the QIBR QHCG... series bearings, a super high-speed design is used, with a speed factor DmN value of up to 3 million (oil-air lubrication) and 2 million (grease lubrication).

QIBR Precision Angular Contact Ball Bearings

QIBR Precision Angular Contact Ball Bearings Preload Methods and Characteristics

Angular contact ball bearing axial preload can be categorized into two types based on the method of applying preload: positional preload and constant pressure preload.

Positional Preload: Positional preload refers to a method where the axial position of the bearing remains relatively unchanged during use. The required preload can be achieved by adjusting the width of the spacer between two bearings. Another approach involves grinding a certain amount of pre-deformation on the end faces of the inner or outer rings of a matched pair of bearings, achieving preload upon installation. Positional preload significantly enhances the rigidity of the bearing support system.
Constant Pressure Preload: Also known as constant force preload, this method ensures that the axial preload of the bearing remains constant during operation. The preload is achieved by adjusting the compression of a spring. Compared to positional preload, constant pressure preload is less effective at improving the axial rigidity of the support system under the same preload. However, with positional preload, the thermal expansion of the shaft and changes in radial clearance caused by temperature differences between the inner and outer rings can affect the amount of preload deformation, while constant pressure preload does not have these issues. Generally, positional preload is preferred when high rigidity is required, whereas constant pressure preload is more suitable for high-speed applications.

Specifications

QIBR Model Selection

QIBR precision angular contact ball bearings offer solutions to enhance bearing rigidity, reduce noise and vibration, improve high-speed performance, and extend service life

QIBR Precision Angular Contact Ball Bearings

QIBR Precision Angular Contact Ball Bearings Preload Methods and Characteristics

QIBR Model Selection

QIBR Model Selection

QIBR precision angular contact ball bearings offer solutions to enhance bearing rigidity, reduce noise and vibration, improve high-speed performance, and extend service life

QIBR Precision Angular Contact Ball Bearings

QIBR Precision Angular Contact Ball Bearings Preload Methods and Characteristics

QIBR Precision Angular Contact Ball Bearing Pairing