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Roller Double Row Angular Contact Ball Bearings

Roller Double Row Angular Contact Ball Bearings

Introduction

The double row angular contact ball bearings typically use balls as rolling elements. However, there are bearings that incorporate both balls and rollers.

These bearings are often used in applications such as machine tool spindles, gearboxes, and other precision equipment where both radial and axial loads need to be supported, and the design allows for higher load capacities and better performance under certain conditions.

Parameter Introduction

LR50 Series

The roller double row angular contact ball bearing (LR50 series) has a reasonable structural design and adopts a double row angular contact ball design, which can withstand large axial and radial loads. At the same time, the inner ring and outer ring of the bearing are in contact with the roller and cage respectively, giving the bearing high stability and long service life.

It has strong load-bearing capacity and can withstand large axial and radial loads under high-speed operation conditions. This makes the bearing suitable for use in various high-precision, high-load mechanical systems, such as CNC machine tools, industrial robots, etc.

Bearing Code (Outer Diameter Straight Surface) Bearing Code (Outer Diameter Arc Surface) Dimensions( mm ) Rated Load(KN) Reference Weight
Dust Cover Type Seal Type Dust Cover Type Seal Type d D B rmin Cr Cor Mass(kg)
LR5000 KDD LR5000 NPP LR5000 KDDU LR5000 NPPU 10 28 12 0.3 5.647 3.198 0.038
LR5001 KDD LR5001 NPP LR5001 KDDU LR5001 NPPU 12 30 12 0.3 6.109 3.700 0.042
LR5002 KDD LR5002 NPP LR5002 KDDU LR5002 NPPU 15 35 13 0.3 6.497 4.314 0.063
LR5003 KDD LR5003 NPP LR5003 KDDU LR5003 NPPU 17 40 14 0.3 9.063 6.102 0.088
LR5004 KDD LR5004 NPP LR5004 KDDU LR5004 NPPU 20 47 16 0.6 11.954 8.314 0.136
LR5005 KDD LR5005 NPP LR5005 KDDU LR5005 NPPU 25 55 16 0.6 12.559 9.476 0.157
LR5006 KDD LR5006 NPP LR5006 KDDU LR5006 NPPU 30 62 19 1.0 17.876 13.905 0.264
LR5007 KDD LR5007 NPP LR5007 KDDU LR5007 NPPU 35 68 20 1.0 20.776 17.251 0.315
LR5008 KDD LR5008 NPP LR5008 KDDU LR5008 NPPU 40 75 21 1.0 21.584 19.122 0.400
LR5009 KDD LR5009 NPP LR5009 KDDU LR5009 NPPU 45 80 23 1.0 22.394 20.800 0.750

LR52 LR53 (3057, 3067, 3058, 3068) Series



Roller double row angular contact ball bearings LR52 LR53 (3057, 3067, 3058, 3068) series have smaller friction resistance, which helps to reduce the energy consumption and temperature of the mechanical system. At the same time, the friction coefficient of the bearing is stable, which can ensure that the mechanical system maintains stable performance during long-term operation.

Roller double row angular contact ball bearings have high rotation accuracy, which helps improve the motion accuracy and stability of the mechanical system. At the same time, the bearing can automatically align and adapt to the assembly requirements of various spindles, making the mechanical system less prone to deviations and vibrations.

Roller double row angular contact ball bearings are suitable for various mechanical systems, such as machine tools, textile machinery, printing machinery, packaging machinery, etc. At the same time, the bearing can adapt to different working envisronment temperature and humidity conditions, and has wider adaptability.

Bearing Code (Outer Diameter Straight Surface) Bearing code (Outer Diameter Arc Surface) Dimensions( mm ) Rated Load(KN) Reference Weight
Dust Cover Type
(LR52、LR53
KDD )
Seal Type
(LR52、LR53
NPP )
Dust Cover Type
(LR52、LR53
KDDU )
Seal Type
(LR52、LR53
NPPU )
d D B rmin Cr Cor Mass
(kg
)
305700 ZZ 305700 2RS 305800 ZZ 305800 2RS 10 32 14 0.6 7.1 3.9 0.057
305701 ZZ 305701 2RS 305801 ZZ 305801 2RS 12 35 15.9 0.6 7.8 4.6 0.0579
305702 ZZ 305702 2RS 305802 ZZ 305802 2RS 15 40 15.9 0.6 10.3 6.3 0.100
305703 ZZ 305703 2RS 305803 ZZ 305803 2RS 17 47 17.5 0.6 12.7 8.2 0.161
305704 ZZ 305704 2RS 305804 ZZ 305804 2RS 20 52 20.6 1.0 16.3 10.5 0.214
305705 ZZ 305705 2RS 305805 ZZ 305805 2RS 25 62 20.6 1.0 18.8 13.7 0.315
305706 ZZ 305706 2RS 305806 ZZ 305806 2RS 30 72 23.8 1.0 25.2 18.3 0.480
305707 ZZ 305707 2RS 305807 ZZ 305807 2RS 35 80 27 1.1 31.5 24.5 0.663
305708 ZZ 305708 2RS 305808 ZZ 305808 2RS 40 85 30.2 1.1 41.8 33.3 0.754
305709 ZZ 305709 2RS 305809 ZZ 305809 2RS 45 90 30.2 1.1 41.5 33.6 0.814
306700 ZZ 306700 2RS 306800 ZZ 306800 2RS 10 37 19 0.6 10.5 5.8 0.108
306701 ZZ 306701 2RS 306801 ZZ 306801 2RS 12 42 19 1.0 13.1 7.4 0.141
306702 ZZ 306702 2RS 306802 ZZ 306802 2RS 15 47 19 1.0 12.8 8.2 0.179
306703 ZZ 306703 2RS 306803 ZZ 306803 2RS 17 52 22.2 1.0 17.8 10.7 0.242
306704 ZZ 306704 2RS 306804 ZZ 306804 2RS 20 62 22.2 1.1 19.6 12.7 0.373
306705 ZZ 306705 2RS 306805 ZZ 306805 2RS 25 72 25.4 1.1 27.3 18.4 0.555
306706 ZZ 306706 2RS 306806 ZZ 306806 2RS 30 80 30.2 1.1 36.1 25.3 0.763
306707 ZZ 306707 2RS 306807 ZZ 306807 2RS 35 90 34.9 1.5 51.0 36.1 1.076
306708 ZZ 306708 2RS 306808 ZZ 306808 2RS 40 100 36.5 1.5 62.3 45.2 1.360


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