contact us

Try to get a Free Sample

No. 61, BinHe Road, LuoLong Zone, LuoYang City, P.R. of China

+86 (0379) 639 68877

operating hours

8:00 — 18:00

Consulting method

info@qibr.com

products

High precision deep groove ball bearing

Customizable



LEARN MORE
  • QIBR Model Selection
  • QIBR Customized Bearing
  • QIBR Process Control
  • QIBR Sort and Grade
Designation Dimensions Basic Load Rating Weight Limiting Speed
mm kN kg r/min
d D B rmin Cr Cor Grease Oil
61820 100 125 13 1 19.6 21.2 0.31 4800 5700
61822 110 140 16 1 28.1 30.7 0.61 4300 5100
61824 120 150 16 1 29 33 0.66 4000 4700
61826 130 165 18 1.1 36.9 41.2 0.94 3600 4300
61828 140 175 18 1.1 38.2 44.4 1 3400 4000
61830 150 190 20 1.1 49.1 58.5 1.15 3000 3600
61832 160 200 20 1.1 48.5 61 1.23 2800 3400
61834 170 215 22 1.1 61.5 78 1.9 2600 3200
61836 180 225 22 1.1 62.3 78.5 1.72 2400 3000
61838 190 240 24 1.5 75.1 93.5 2.53 2200 2800
61840 200 250 24 1.5 74 98 2.67 2200 2800
61844 220 270 24 1.5 76.5 97.8 2.9 1900 2400
61848 240 300 28 2 83.5 108 4.48 1800 2200
61852 260 320 28 2 101 148 4.84 1700 2000
61856 280 350 33 2 133 191 7.2 1600 1900
61860 300 380 38 2.1 166 233 10.3 1400 1700
61864 320 400 38 2.1 168 244 10.8 1300 1600
61868 340 420 38 2.1 175 265 11.5 1200 1500
61872 360 440 38 2.1 192 290 11.8 1100 1400
61876 380 480 46 2.1 238 375 19.5 1000 1300
61880 400 500 46 2.1 241 390 20.5 1000 1300
61884 420 520 46 2.1 245 410 21.4 950 1200
61888 440 540 46 2.1 249 425 22.3 900 1100
61892 460 580 56 3 310 550 34.3 900 1100
61896 480 600 56 3 315 575 35.4 850 1000
618/500 500 620 56 3 320 600 37.2 800 950
618/530 530 650 56 3 325 625 39.8 750 900
618/560 560 680 56 3 330 650 41.5 700 850
618/600 600 730 60 3 355 735 50.9 670 800
618/630 630 780 69 4 420 890 71.3 630 750
618/670 670 820 69 4 435 965 75.4 560 670
618/710 710 870 74 4 480 1100 92.6 530 630
618/750 750 920 78 5 525 1260 110 500 600
618/800 800 980 82 5 530 1310 132 450 530
618/850 850 1030 82 5 559 1430 140 410 470
618/900 900 1090 85 5 618 1532 160 350 410
618/950 950 1150 90 5 637 1730 190 290 350
61920 100 140 20 1.1 45 41.9 0.96 4500 5300
61922 110 150 20 1.1 47.9 47.8 1.04 4100 4900
61924 120 165 22 1.1 57.2 56.9 1.41 3800 4400
61926 130 180 24 1.5 69.6 70 1.86 3400 4100
61928 140 190 24 1.5 71.3 74.8 1.98 3200 3800
61930 150 210 28 2 85 90.5 2.59 2800 3400
61932 160 220 28 2 87 96 2.71 2600 3200
61934 170 230 28 2 88.8 100 2.85 2400 3000
61936 180 250 33 2 119 133 4.16 2200 2800
61938 190 260 33 2 117 133 5.18 2200 2800
61940 200 280 38 2.1 149 168 7.28 2000 2600
61944 220 300 38 2.1 152 178 7.88 1900 2400
61948 240 320 38 2.1 154 190 8.49 1800 2200
61952 260 360 46 2.1 210 268 14 1600 1900
61956 280 380 46 2.1 209 272 15.1 1500 1800
61960 300 420 56 3 270 375 24.5 1300 1600
61964 320 440 56 3 275 392 25.3 1200 1500
61968 340 460 56 3 292 418 26.6 1100 1400
61972 360 480 56 3 280 425 27.9 1100 1400
61976 380 520 65 4 338 540 40 1000 1300
61980 400 540 65 4 335 540 42 950 1200
61984 420 560 65 4 340 570 43.6 900 1100
61988 440 600 74 4 395 680 60.2 900 1100
61992 460 620 74 4 405 720 62.6 850 1000
61996 480 650 78 5 450 815 73.5 800 950
619/500 500 670 78 5 460 865 82 750 900
619/530 530 710 82 5 455 870 89.8 750 900
619/560 560 750 85 5 525 1040 105 670 800
619/600 600 800 90 5 550 1160 120 630 750
619/630 630 850 100 6 625 1350 163 600 700
619/670 670 900 103 6 675 1460 181 530 630
619/710 710 950 106 6 715 1640 220 500 600
619/750 750 1000 112 6 785 1840 245 480 560
619/800 800 1060 115 6 825 2050 275 430 500
619/850 850 1120 118 6 832 2160 310 380 440
619/900 900 1180 122 6 852 2280 350 320 380
619/950 950 1250 132 6 1010 2800 390 260 320

Deep groove ball bearing is the most representative rolling bearings and widely used. It is applied for high speeds and even super-high speed revolutions, with characteristics of extreme durability and maintenance-free. Deep groove ball bearing has characteristics of small friction coefficient, high limit rotation speed, simple structure, low manufacturing cost, easy achieving high manufacturing precision, various dimensions and models. It is applied in precision instruments, low noise motors, automobiles, motorcycles and general machinery industry, and it is the most widely used types of bearings in the machinery industry. The bearing mainly bears radial load and can also take certain axial load.

Raw material

QIBR precision anti-friction bearings are usually made of chrome steel, which consist of about 1% carbon, 1.5% chromium and a small amount of manganese, silicon, and sometimes a small amount of molybdenum.

QIBR offers you a wide range of material options such as GCr15, 100Cr6, SKF 3, SUJ-2 etc. At the same time, some models of QIBR are available in stainless steel.

The rolling element can be ceramic ball (silicon nitride). Due to ceramic is kind of special material, the ceramic ball bearing has advantages of higher rotation speed, good self-lubricating property, and the rigidity is 15%-20% higher than the general bearing, and better high temperature resistance.

Bearing cage

The high-quality cage used by QIBR bearings ensure that the balls are evenly distributed in the bearing rings and can be rotated properly.

The cage has stamped steel wave type, stamped steel rivet type, nylon or phenolic plastic.

QIBR offers a wide range of advice and options depending on the operating conditions.

Seals

In order to prevent contaminants from entering the inside of the bearing, QIBR uses a metal dust cover or a rubber seal with a metal skeleton.

QIBR are able to choose two types as a combination seals according to your working conditions, or choose different kinds of seal materials, such as nitrile rubber BUNA, acrylic rubber HYCAR, fluoro rubber VITON.

Type of lubrication

Lubricating oil is the basic lubricant for ball bearings. Previously most of the lubricating oil was extracted from petroleum. Synthetic oils are now acceptable due to improved performance, such as two lipid synthetic oils, silicones and fluorocarbon synthetic oils. In general, lipid synthetic oils have better low temperature properties, lower volatility, and better temperature characteristics and viscosity compared than petroleum refined oils. Essentially all lubricants contain additives to inhibit chemical changes, prevent metal corrosion, and improve physical properties (antifoam, etc.).

The silicone and fluorocarbon synthetic oils that adopted by QIBR have lower volatility and wider temperature/viscosity characteristics.

Radial clearance

The radial clearance is the gap between the steel ball and the ring. QIBR is precisely tailored to customer's temperature conditions, interference fit, misalignment of the bearing's axis, required noise level and speed.

Service life and the rated load

The bearing life is the number of bearing rotations before the fatigue occurs on the ring or any rolling element (or the rotation time at a constant speed). However, the same set of bearings will not necessarily have the same life under the same conditions. In this case, the rated life is the number of rotations that 90% of the bearings in this group can reach or exceed before bearing weariness (or the rotation time at a constant speed). The service life of QIBR series bearings are 10%-20% longer than other bearings of the same model, through strict production process, high standard material selection, precision control.

The adopted steel balls

The steel balls in the deep groove ball bearings used by QIBR are mainly designed according to the load requirements of the bearing. The bearing ball sizes of different models are different, generally the value of rib coefficient Kd (ditch depth) range 0.35-0.40. , related to bearing diameter, such as 6000 series Kd = 0.35, 6400 series Kd = 0.40; 6200 and 6300 series, d ≤ 25mm take Kd = 0.35, d > 25mm take Kd = 0.40. Groove depth = Kd × steel ball diameter.


Bearing steel ball material comparison table
GB (China) Gcr15 GCr15SiMn
ASTM/AISI (USA) 52100 *
ГОСТ(Russia) ШX15 ШX15CГ
BS (UK) 534A99 *
JIS (Japan) SUJ2 SUJ3
NF (France) 100C6 100CrMn6
VDEh (Germany) 100Cr6 (1.3505) 1.352
Grade of ball

G3, G5, G10, G16, G20, G24, G28, G40, G60, G100, G200

Grade of roller

G1, G1A, G2, G2A, G3, G5

Precisions of rolling bearing (mainly) include dimension precision and rotation precision.

Dimensional precision (items related to shaft and shell installation)

1. Allowable deviation of inner diameter, outer diameter, width and assembly width

2, the allowable limit value of the chamfer size

3, the allowable variation of the width

Rotation precision (items related to runout of the rotating body)

1. Allowable radial runout and axial runout of the inner and outer rings

2, the inner ring allows horizontal runout

3. Allowable variation of outer diameter surface inclination

Deep groove ball bearings GB307 Level 0 Level 6 Level 5 Level 4 Level 2

Angular contact ball bearings 0 level 6 level 5 level 4 level 2 level

The noise level of the bearing is divided into Z1, Z2, Z3, Z4 (the higher the level, the better quality is).

The vibration level of the bearing is divided into V1, V2, V3, V4 (the higher the level, the better quality is).

High precision deep groove ball bearing

Bearing Standard
Bearing Precision Grade
GOST Grade 0 Grade 6 Grade 5 Grade 4 Grade 2
ISO P0 P6 P5 P4 P2

Hot Sales

For more information, please contact us.

contact us