The DNT precision angular contact ball bearings for spindles, have four size series,718,719,70 and 72. With the same inner diameter, the outer diameters and the widths of 718,719,70 and 72 series increase in turn.
DNT precision angular contact ball bearing with 15 ° (C) and 25 ° (AC) contact angles. As for the angular contact ball bearings, the bigger the contact angle is, the greater the axial load capacity is, but the lower the limited speed of bearings becomes. Therefore ,the spindle, with high speed and small axial load ,should adopt the 15 ° angular contact ball bearings,whereas the 25 ° angular contact ball bearing should be adopted.Dimension table of angular contact ball bearing:
(1) Single row angular contact ball bearingBearing No. | Shape Dimension(mm) |
(KN)
Basic rated load |
Max Speed(rpm) | Weight(Kg) | ||||
d | D | B | Cr | Cor | Grease | oil | ||
Single row angular contact ball bearing | ||||||||
7200C | 10 | 30 | 9 | 5.8 | 2.90 | 22000 | 28000 | 0.032 |
7200AC | 10 | 30 | 9 | 5.5 | 2.80 | 22000 | 28000 | 0.032 |
7200B | 10 | 30 | 9 | 5.3 | 2.70 | 19000 | 27000 | 0.03 |
7300C | 10 | 35 | 11 | 9.8 | 4.69 | 18000 | 26000 | 0.053 |
7300AC | 10 | 35 | 11 | 9.5 | 4.40 | 18000 | 26000 | 0.053 |
7201C | 12 | 32 | 10 | 7.90 | 3.80 | 20000 | 25000 | 0.037 |
7201AC | 12 | 32 | 10 | 7.6 | 3.60 | 20000 | 25000 | 0.037 |
7201B | 12 | 32 | 10 | 6.90 | 3.20 | 18000 | 24000 | 0.036 |
7301C | 12 | 37 | 12 | 11.8 | 5.60 | 17000 | 24000 | 0.060 |
7301AC | 12 | 37 | 12 | 11.50 | 5.40 | 17000 | 24000 | 0.060 |
7301B | 12 | 37 | 12 | 10.5 | 4.90 | 16000 | 22000 | 0.060 |
7202C | 15 | 35 | 11 | 9.2 | 4.90 | 17000 | 22000 | 0.045 |
7202AC | 15 | 35 | 11 | 8.90 | 4.80 | 17000 | 22000 | 0.045 |
7202B | 15 | 35 | 11 | 7.9 | 4.20 | 16000 | 22000 | 0.045 |
7302C | 15 | 42 | 13 | 13.2 | 6.70 | 15000 | 21000 | 0.084 |
7302AC | 15 | 42 | 13 | 12.5 | 6.20 | 15000 | 21000 | 0.084 |
7302B | 15 | 42 | 13 | 12.4 | 6.50 | 14000 | 19000 | 0.080 |
7203C | 17 | 40 | 12 | 10.8 | 5.80 | 15000 | 20000 | 0.062 |
7203AC | 17 | 40 | 12 | 10.4 | 5.60 | 15000 | 20000 | 0.062 |
7203B | 17 | 40 | 12 | 9.9 | 5.50 | 14000 | 19000 | 0.065 |
7303C | 17 | 47 | 14 | 15.7 | 8.20 | 13000 | 19000 | 0.110 |
7303AC | 17 | 47 | 14 | 15.0 | 7.70 | 13000 | 19000 | 0.110 |
7303B | 17 | 47 | 14 | 15.4 | 8.10 | 13000 | 17000 | 0.110 |
7204C | 20 | 47 | 14 | 14.5 | 8.10 | 13000 | 18000 | 0.100 |
7204AC | 20 | 47 | 14 | 14.0 | 7.80 | 13000 | 18000 | 0.100 |
7204B | 20 | 47 | 14 | 13.4 | 7.60 | 12000 | 16000 | 0.110 |
7304C | 20 | 52 | 15 | 18.4 | 9.80 | 12000 | 17000 | 0.150 |
7304AC | 20 | 52 | 15 | 17.9 | 9.60 | 12000 | 17000 | 0.150 |
7304B | 20 | 52 | 15 | 17.3 | 9.6000 | 11000 | 15000 | 0.140 |
7205C | 25 | 52 | 15 | 16.5 | 10.00 | 11000 | 16000 | 0.120 |
7205AC | 25 | 52 | 15 | 15.8 | 9.70 | 11000 | 16000 | 0.120 |
7205B | 25 | 52 | 15 | 14.8 | 9.30 | 10000 | 14000 | 0.130 |
7305C | 25 | 62 | 17 | 27.8 | 15.90 | 9500 | 14000 | 0.230 |
7305AC | 25 | 62 | 17 | 27.0 | 15.90 | 9500 | 14000 | 0.230 |
7305B | 25 | 62 | 17 | 24.3 | 14.10 | 9000 | 13000 | 0.230 |
7206C | 30 | 62 | 16 | 23.0 | 14.70 | 9000 | 13000 | 0.190 |
7206AC | 30 | 62 | 16 | 22.1 | 13.50 | 9000 | 13000 | 0.190 |
7206B | 30 | 62 | 16 | 20.5 | 13.50 | 8500 | 12000 | 0.200 |
7306C | 30 | 72 | 19 | 33.2 | 21.20 | 8500 | 12000 | 0.350 |
7306AC | 30 | 72 | 19 | 32.8 | 20.40 | 8500 | 12000 | 0.350 |
7306B | 30 | 72 | 19 | 29.3 | 18.10 | 8000 | 11000 | 0.340 |
7207C | 35 | 72 | 17 | 30.3 | 20.00 | 8000 | 11000 | 0.280 |
7207AC | 35 | 72 | 17 | 29.2 | 18.00 | 8000 | 11000 | 0.280 |
7207B | 35 | 72 | 17 | 28.3 | 14.80 | 7500 | 10000 | 0.280 |
7307C | 35 | 80 | 21 | 40.3 | 25.80 | 7500 | 10000 | 0.470 |
7307AC | 35 | 80 | 21 | 38.2 | 24.90 | 7500 | 10000 | 0.470 |
7307B | 35 | 80 | 21 | 38.3 | 24.40 | 7000 | 9500 | 0.450 |
7208C | 40 | 80 | 18 | 38.4 | 26.30 | 7500 | 10000 | 0.370 |
7208AC | 40 | 80 | 18 | 36.8 | 25.40 | 7500 | 10000 | 0.370 |
7208B | 40 | 80 | 18 | 34.5 | 23.80 | 6700 | 9000 | 0.420 |
7308C | 40 | 90 | 23 | 49.3 | 32.30 | 6700 | 9000 | 0.660 |
7308AC | 40 | 90 | 23 | 47.0 | 31.10 | 6700 | 9000 | 0.660 |
7308B | 40 | 90 | 23 | 46.5 | 29.50 | 6300 | 8500 | 0.630 |
7209C | 45 | 85 | 19 | 40.4 | 29.30 | 6700 | 9000 | 0.410 |
7209AC | 45 | 85 | 19 | 38.6 | 28.10 | 6700 | 9000 | 0.410 |
7209B | 45 | 85 | 19 | 34.0 | 24.60 | 6300 | 8500 | 0.420 |
7309C | 45 | 100 | 25 | 63.1 | 42.90 | 6000 | 8000 | 0.860 |
7309AC | 45 | 100 | 25 | 61.6 | 41.20 | 6000 | 8000 | 0.860 |
7309B | 45 | 100 | 25 | 59.6 | 39.60 | 5600 | 7500 | 0.850 |
7210C | 50 | 90 | 20 | 42.80 | 31.30 | 6300 | 8500 | 0.460 |
7210AC | 50 | 90 | 20 | 40.8 | 30.10 | 6300 | 8500 | 0.460 |
7210B | 50 | 90 | 20 | 40.4 | 25.60 | 5600 | 8000 | 0.470 |
7310C | 50 | 110 | 27 | 74.9 | 50.90 | 5600 | 7500 | 1.080 |
7310AC | 50 | 110 | 27 | 71.9 | 48.50 | 5000 | 7500 | 1.080 |
7310B | 50 | 110 | 27 | 68.1 | 48.00 | 5600 | 6700 | 1.100 |
7211C | 55 | 100 | 21 | 53.2 | 39.90 | 5600 | 7000 | 0.610 |
7211AC | 55 | 100 | 21 | 50.8 | 38.20 | 5600 | 7000 | 0.610 |
7211B | 55 | 100 | 21 | 46.3 | 36.00 | 5300 | 7000 | 0.620 |
7311C | 55 | 120 | 29 | 86.4 | 59.50 | 5000 | 6700 | 1.420 |
7311AC | 55 | 120 | 29 | 83.4 | 58.00 | 5000 | 3700 | 1.420 |
7311B | 55 | 120 | 29 | 82.2 | 56.20 | 4500 | 6300 | 1.400 |
7212C | 60 | 110 | 22 | 61.0 | 48.20 | 5300 | 7000 | 0.800 |
7212AC | 60 | 110 | 22 | 58.1 | 46.00 | 5300 | 7000 | 0.800 |
7212B | 60 | 110 | 22 | 56.1 | 44.30 | 4800 | 6300 | 0.800 |
7312C | 60 | 130 | 31 | 98.6 | 68.50 | 4800 | 6300 | 1.710 |
7312AC | 60 | 130 | 31 | 95.2 | 67.20 | 4800 | 6300 | 1.710 |
7312B | 60 | 130 | 31 | 91.5 | 65.40 | 4300 | 5600 | 1.750 |
7213C | 65 | 120 | 23 | 69.8 | 54.50 | 4800 | 6300 | 1.000 |
7213AC | 65 | 120 | 23 | 66.6 | 52.10 | 4800 | 6300 | 1.000 |
7213B | 65 | 120 | 23 | 65.7 | 50.20 | 4300 | 6000 | 1.000 |
7313C | 65 | 140 | 33 | 113.1 | 79.60 | 4300 | 5600 | 2.230 |
7313AC | 65 | 140 | 33 | 109.3 | 78.30 | 4300 | 5600 | 2.230 |
7313B | 65 | 140 | 33 | 102.3 | 75.30 | 3800 | 5300 | 2.150 |
7214C | 70 | 125 | 24 | 72.8 | 59.70 | 4500 | 5800 | 1.100 |
7214AC | 70 | 125 | 24 | 69.4 | 57.00 | 4500 | 5800 | 1.100 |
7214B | 70 | 125 | 24 | 70.4 | 56.30 | 4000 | 5600 | 1.100 |
7314C | 70 | 150 | 35 | 126.0 | 91.60 | 4000 | 5300 | 2.670 |
7314AC | 70 | 150 | 35 | 118.8 | 88.20 | 4000 | 5300 | 2.670 |
7314B | 70 | 150 | 35 | 114.6 | 85.90 | 3600 | 5000 | 2.650 |
7215C | 75 | 130 | 25 | 79.2 | 65.60 | 4300 | 5600 | 1.200 |
7215AC | 75 | 130 | 25 | 75.3 | 62.80 | 4300 | 5600 | 1.200 |
7215B | 75 | 130 | 25 | 68.6 | 58.20 | 3800 | 5300 | 1.200 |
7315C | 75 | 160 | 37 | 140.7 | 103.90 | 3800 | 5000 | 3.100 |
7315AC | 75 | 160 | 37 | 134.4 | 99.80 | 3800 | 5000 | 3.100 |
7315B | 75 | 160 | 37 | 127.7 | 95.40 | 3400 | 4800 | 3.200 |
7216C | 80 | 140 | 26 | 92.5 | 66.20 | 4000 | 5300 | 1.450 |
7216AC | 80 | 140 | 26 | 91.3 | 65.10 | 4000 | 5300 | 1.450 |
7216B | 80 | 140 | 26 | 78.7 | 65.70 | 4000 | 5300 | 1.450 |
7316C | 80 | 170 | 39 | 156.1 | 112.20 | 3600 | 4800 | 3.600 |
7316AC | 80 | 170 | 39 | 149.5 | 107.70 | 3600 | 4800 | 3.600 |
7316B | 80 | 170 | 39 | 141.4 | 107.90 | 3200 | 4800 | 3.800 |
7217C | 85 | 150 | 28 | 99.7 | 84.60 | 3800 | 5000 | 1.800 |
7217AC | 85 | 150 | 28 | 94.9 | 80.80 | 3800 | 5000 | 1.800 |
7217B | 85 | 150 | 28 | 83.2 | 74.10 | 3600 | 5000 | 1.850 |
7317C | 85 | 180 | 41 | 160.7 | 130.50 | 3400 | 4500 | 4.380 |
7317AC | 85 | 180 | 41 | 154.3 | 122.30 | 3400 | 4500 | 4.380 |
7317B | 85 | 180 | 41 | 155.8 | 120.90 | 3000 | 4000 | 4.450 |
5200 | 10 | 30 | 14.3 | 7 | 3.80 | 20000 | 15000 | 0.049 |
5201 | 12 | 32 | 15.9 | 9.2 | 5.10 | 19000 | 14000 | 0.057 |
5202 | 15 | 35 | 15.9 | 10 | 6.10 | 16000 | 12000 | 0.064 |
5203 | 17 | 40 | 17.5 | 12.8 | 7.90 | 14000 | 10000 | 0.034 |
5204 | 20 | 47 | 20.6 | 19 | 12.10 | 12000 | 8000 | 0.153 |
5205 | 25 | 52 | 20.6 | 20.6 | 14.30 | 10000 | 7500 | 0.175 |
5206 | 30 | 62 | 23.8 | 28.6 | 20.40 | 8500 | 6500 | 0.286 |
5207 | 35 | 72 | 27 | 38 | 27.80 | 7500 | 5500 | 0.436 |
5208 | 40 | 80 | 30.2 | 42.5 | 32.50 | 7000 | 5300 | 0.590 |
5209 | 45 | 85 | 30.2 | 48 | 37.00 | 6500 | 5000 | 0.640 |
5210 | 50 | 90 | 30.2 | 51 | 42.00 | 6000 | 4500 | 0.689 |
5211 | 55 | 100 | 33.3 | 63 | 53.00 | 5800 | 4400 | 0.986 |
5212 | 60 | 110 | 36.5 | 71.5 | 58.50 | 5300 | 4000 | 1.270 |
5213 | 65 | 120 | 38.1 | 83.5 | 72.50 | 4800 | 4000 | 1.570 |
5214 | 70 | 125 | 39.7 | 87.5 | 79.50 | 4400 | 3800 | 1.800 |
5215 | 75 | 130 | 41.3 | 90 | 80.50 | 3600 | 3600 | 1.900 |
5216 | 80 | 140 | 44.4 | 106 | 95.50 | 3600 | 2800 | 2.390 |
5217 | 85 | 150 | 49.2 | 112 | 106.00 | 3500 | 2400 | 3.060 |
5218 | 90 | 160 | 52.4 | 140 | 129.00 | 3200 | 2200 | 3.730 |
5300 | 10 | 35 | 19 | 9.2 | 5.10 | 19000 | 14000 | 0.092 |
5301 | 12 | 37 | 19 | 10 | 6.10 | 17000 | 12000 | 0.109 |
5302 | 15 | 42 | 19 | 12.8 | 7.90 | 15000 | 10000 | 0.132 |
5303 | 17 | 47 | 22.2 | 20.4 | 12.10 | 12000 | 8000 | 0.181 |
5304 | 20 | 52 | 22.2 | 20.6 | 12.70 | 12000 | 8000 | 0.227 |
5305 | 25 | 62 | 25.4 | 30.5 | 20.50 | 10000 | 7500 | 0.362 |
5306 | 30 | 72 | 30.2 | 39.5 | 27.50 | 8000 | 6500 | 0.553 |
5307 | 35 | 80 | 34.9 | 49.5 | 35.00 | 7000 | 5300 | 0.766 |
5308 | 40 | 90 | 36.5 | 60.5 | 44.00 | 6500 | 5000 | 1.010 |
5309 | 45 | 100 | 39.7 | 72.5 | 54.00 | 5600 | 4300 | 1.340 |
5310 | 50 | 110 | 44.4 | 85.5 | 64.50 | 5300 | 4000 | 1.810 |
5311 | 55 | 120 | 49.2 | 106 | 82.00 | 4800 | 3600 | 2.320 |
5312 | 60 | 130 | 54 | 122 | 95.50 | 4500 | 3500 | 3.050 |
5313 | 65 | 140 | 58.7 | 138 | 109.00 | 4000 | 3000 | 3.960 |
5314 | 70 | 150 | 63.5 | 155 | 125.00 | 3800 | 2800 | 4.740 |
5315 | 75 | 160 | 68.3 | 168 | 141.00 | 3200 | 2600 | 5.650 |
5316 | 80 | 170 | 68.3 | 175 | 151.00 | 3000 | 2200 | 7.210 |
5318 | 90 | 190 | 73 | 225 | 266.00 | 3000 | 2000 | 9.015 |
3212M | 60 | 110 | 36.5 | 83.5 | 72.50 | 5300 | 4000 | 1.55 |
3213M | 65 | 120 | 38.1 | 87.5 | 79.50 | 4800 | 3800 | 1.78 |
3214M | 70 | 125 | 39.7 | 90 | 80.50 | 4400 | 3600 | 1.9 |
3215M | 75 | 130 | 41.3 | 106 | 95.50 | 3600 | 3000 | 2.15 |
3216M | 80 | 140 | 44.4 | 112 | 106.00 | 3600 | 2800 | 2.7 |
3217M | 85 | 150 | 49.2 | 140 | 129.00 | 3500 | 2400 | 3.5 |
3218M | 90 | 160 | 52.4 | 153 | 142.00 | 3200 | 2200 | 4.18 |
3219M | 95 | 170 | 55.6 | 163 | 184.00 | 3000 | 2000 | 5.1 |
3220M | 100 | 180 | 60.3 | 210 | 240.00 | 2500 | 1900 | 6.14 |
3221M | 105 | 190 | 65.1 | 210 | 240.00 | 2200 | 1600 | 7.4 |
3222M | 110 | 200 | 69.8 | 218 | 245.00 | 2000 | 1400 | 9.2 |
3308M | 40 | 90 | 36.5 | 60.5 | 44.00 | 6500 | 5000 | 1.01 |
3309M | 45 | 100 | 39.7 | 72.5 | 54.00 | 5600 | 4300 | 1.41 |
3310M | 50 | 110 | 44.4 | 85.5 | 65.00 | 5300 | 4000 | 1.96 |
3311M | 55 | 120 | 49.2 | 106 | 82.00 | 4800 | 3600 | 2.68 |
3312M | 60 | 130 | 54 | 122 | 96.00 | 4500 | 3500 | 3.25 |
3313M | 65 | 140 | 58.7 | 138 | 109.00 | 4000 | 3000 | 4.18 |
3314M | 70 | 150 | 63.5 | 155 | 125.00 | 3800 | 2800 | 5.2 |
3315M | 75 | 160 | 68.3 | 168 | 141.00 | 3200 | 2600 | 5.85 |
3316M | 80 | 170 | 68.3 | 175 | 151.00 | 3200 | 2600 | 7.75 |
3317M | 85 | 180 | 73 | 167 | 240.00 | 3000 | 2200 | 8.3 |
3318M | 90 | 190 | 73 | 225 | 266.00 | 3000 | 2000 | 9.02 |
3319M | 95 | 200 | 77.8 | 269 | 294.00 | 2700 | 1800 | 11.16 |
3320M | 100 | 215 | 82.6 | 309 | 359.00 | 2200 | 1500 | 14.2 |
3321M | 105 | 225 | 87.3 | 309 | 360.00 | 1800 | 1200 | 16.35 |
3322M | 110 | 236.5 | 90.2 | 366.2 | 403.70 | 1580 | 990 | 18.19 |
Product features of
DNT
angular contact ball bearing:
1. High-quality bearing materials:
DNT adopts ultra-clean steel, high purity high-carbon chromium bearing steel GCr15 from a well-known domestic manufacturer, which can extend the life of the bearing by 80%.
2. High quality bearing rolling elements:
The bearing balls provided by DNT have good product performance to ensure the optimal bearing configuration and smooth operation at high speed and quiet. DNT has a complete process production line, from powder ultrasonic pre-dispersion, mixture mixing, spray drying granulation, near-net-size molding, cold isostatic pressing, GPS-HIP combined sintering process, high-precision grinding and processing, total quality inspection to packaging. DNT has a comprehensive quality control system, quality identification of raw materials and auxiliary materials, quality control of mixed materials, quality control of pressing and sintering, and quality control of finished products.
3. More suitable bearing cage:
DNT mostly adopts bakelite cage, which can more effectively reduce the friction between metal and bearing balls and extend the life of the bearing. DNT can also choose more suitable bearing cage materials according to customer requirements and bearing applications.
4. Advanced lubrication technology:
DNT uses high performance grease and advanced lubrication technology to extend bearing life and improve bearing performance.
5. Ultra finished raceways:
DNT uses special honing to minimize noise, improve lubricant dispersion and increase bearing life.
6. Contact angle:
DNT ultra high speed precision bearings usually use 15°and 25° contact angles.
7. Accuracy grade:
DNT can offer the high precision angular contact ball bearings with P2, P4A, P4 grade.
Testing equipment
A:Shandong Dente International Trade Co.,Ltd is a manufacturing enterprise focusing on bearings and integrating research, production and sales.