Customization: | Available |
---|---|
Package: | Box |
Hardness: | 58-62 HRC |
Still deciding? Get samples of US$ 0.1/Piece
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
model | 30203(7203E) |
---|---|
Dimension series | 2DB |
d | 17 mm |
D | 40 mm |
T | 13.25 mm |
d1 ≈ | 29 mm |
B | 12 mm |
C | 11 mm |
r1,2 min. | 1 mm |
r3,4 min. | 1 mm |
a | 9.515 mm |
da max. | 23 mm |
db min. | 23.5 mm |
Da min. | 34 mm |
Da max. | 34.5 mm |
Db min. | 37 mm |
Ca min. | 2 mm |
Cb min. | 2 mm |
ra max. | 1 mm |
rb max. | 1 mm |
Calculation data | |
C | 23.4 kN, Basic dynamic load rating |
C0 | 18.6 kN, Basic static load rating |
Pu | 1.83 kN, Fatigue load limit |
Reference speed | 15000 r/min |
Limiting speed | 18000 r/min |
e | 0.35, Calculation factor |
Y | 1.7, Calculation factor |
Y0 | 0.9, Calculation factor |
Mass | 0.079 kg |
The 30203 bearing is a Precision Tapered Roller Bearing in a Set of Cone and Cup. This is the most basic and most widely used type of Tapered Roller Bearing. It consists of two main separable parts: the cone assembly (inner ring) and the cup (outer ring). It is typically mounted in opposing pairs on a Shaft Wheel Bearing Assembly.
30203Tapered Roller Bearings are used in a range of applications from Agricultural Machinery to Conveying Equipment, Electric Motors, Trucks, Mining Equipment, Robotics, Dental Equipment, Gear Drives, Elevators, Rolling Mills, Ship Rudder Shafts, Aggregate Crushers, among others.
More series of Roller bearing
30XXX series Roller bearing
BEARING TYPE |
BEARING NO. |
ID | OD | B | Cr | Cor | MAX SPED (GREASE) |
MAX SPEED (OIL) |
MASS | Material |
(mm) | (mm) | (mm) | (kN) | (kN) | (r/min) | (r/min) | (kg) | |||
Taper roller bearing |
30203 | 17 | 40 | 12 | 20.8 | 21.8 | 9000 | 12000 | 0.079 | Chrome steel |
Taper roller bearing |
30204 | 20 | 47 | 14 | 28.2 | 30.5 | 8000 | 10000 | 0.126 | Chrome steel |
Taper roller bearing |
30205 | 25 | 52 | 15 | 32.2 | 37 | 7000 | 9000 | 0.154 | Chrome steel |
Taper roller bearing |
30206 | 30 | 62 | 17.5 | 43.2 | 50.5 | 6000 | 7500 | 0.231 | Chrome steel |
Taper roller bearing |
30207 | 35 | 72 | 17 | 54.2 | 63.5 | 5300 | 6700 | 0.331 | Chrome steel |
Taper roller bearing |
30208 | 40 | 80 | 18 | 63 | 74 | 5000 | 6300 | 0.422 | Chrome steel |
Taper roller bearing |
30209 | 45 | 85 | 19 | 67.8 | 83.5 | 4500 | 5600 | 0.474 | Chrome steel |
Taper roller bearing |
30210 | 50 | 90 | 20 | 73.2 | 92 | 4300 | 5300 | 0.529 | Chrome steel |
Taper roller bearing |
30211 | 55 | 100 | 21 | 90.8 | 115 | 3800 | 4800 | 0.713 | Chrome steel |
Taper roller bearing |
30212 | 60 | 110 | 22 | 102 | 130 | 3600 | 4500 | 0.904 | Chrome steel |
Taper roller bearing |
30213 | 65 | 120 | 23 | 120 | 152 | 3200 | 4000 | 1.13 | Chrome steel |
Taper roller bearing |
30214 | 70 | 125 | 24 | 132 | 175 | 3000 | 3800 | 1.26 | Chrome steel |
Taper roller bearing |
30215 | 75 | 130 | 25 | 138 | 185 | 2800 | 3600 | 1.36 | Chrome steel |
Taper roller bearing |
30216 | 80 | 140 | 26 | 160 | 212 | 2600 | 3400 | 1.67 | Chrome steel |
Taper roller bearing |
30217 | 85 | 150 | 31 | 178 | 238 | 2400 | 3200 | 2.06 | Chrome steel |
Taper roller bearing |
30218 | 90 | 160 | 30 | 200 | 270 | 2200 | 3000 | 2.54 | Chrome steel |
Taper roller bearing |
30219 | 95 | 170 | 32 | 228 | 308 | 2000 | 2800 | 3.04 | Chrome steel |
Taper roller bearing |
30220 | 100 | 180 | 34 | 255 | 350 | 1900 | 2600 | 3.72 | Chrome steel |
Taper roller bearing |
30221 | 105 | 190 | 36 | 285 | 398 | 1800 | 2400 | 4.38 | Chrome steel |
Taper roller bearing |
30222 | 110 | 200 | 38 | 315 | 445 | 1700 | 2200 | 5.21 | Chrome steel |
Taper roller bearing |
30224 | 120 | 215 | 40 | 338 | 482 | 1500 | 1900 | 6.2 | Chrome steel |
Taper roller bearing |
30226 | 130 | 230 | 40 | 365 | 520 | 1400 | 1800 | 6.94 | Chrome steel |
Taper roller bearing |
30228 | 140 | 250 | 42 | 408 | 585 | 1200 | 1600 | 8.73 | Chrome steel |
Taper roller bearing |
30230 | 150 | 270 | 45 | 450 | 645 | 1100 | 1500 | 10.8 | Chrome steel |
Taper roller bearing |
30232 | 160 | 290 | 48 | 512 | 738 | 1000 | 1400 | 13.3 | Chrome steel |
Taper roller bearing |
30234 | 170 | 310 | 52 | 590 | 865 | 1000 | 1300 | 16.6 | Chrome steel |
Taper roller bearing |
30236 | 180 | 320 | 52 | 610 | 912 | 900 | 1200 | 17.3 | Chrome steel |
Taper roller bearing |
30238 | 190 | 340 | 55 | 698 | 1030 | 850 | 1100 | 20.8 | Chrome steel |
Taper roller bearing |
30240 | 200 | 360 | 58 | 685 | 972 | 940 | 1200 | 25.6 | Chrome steel |
Taper roller bearing |
30244 | 220 | 400 | 73 | 1010 | 1440 | 830 | 1100 | 35.5 | Chrome steel |
Taper roller bearing |
30248 | 240 | 440 | 79 | 1230 | 1790 | 730 | 980 | 46.4 | Chrome steel |
Taper roller bearing |
30252 | 260 | 480 | 80 | 1210 | 1860 | 650 | 870 | 64.9 | Chrome steel |
Taper roller bearing |
30256 | 280 | 500 | 80 | 1260 | 1920 | 610 | 810 | 67.6 | Chrome steel |
Taper roller bearing |
30260 | 300 | 540 | 85 | 1510 | 2360 | 550 | 730 | 84.7 | Chrome steel |
Taper roller bearing |
30264 | 320 | 580 | 92 | 1740 | 2770 | 490 | 660 | 108 | Chrome steel |
Taper roller bearing |
30304 | 20 | 52 | 15 | 30.5 | 28.4 | 8300 | 11000 | 0.17 | Chrome steel |
Taper roller bearing |
30305 | 25 | 62 | 17 | 46.8 | 48 | 6300 | 8000 | 0.263 | Chrome steel |
Taper roller bearing |
30306 | 30 | 72 | 21 | 59 | 63 | 5600 | 7000 | 0.387 | Chrome steel |
Taper roller bearing |
30307 | 35 | 80 | 21 | 75.2 | 82.5 | 5000 | 6300 | 0.515 | Chrome steel |
Taper roller bearing |
30308 | 40 | 90 | 23 | 90.8 | 108 | 4500 | 5600 | 0.747 | Chrome steel |
Taper roller bearing |
30309 | 45 | 100 | 25 | 108 | 130 | 4000 | 5000 | 0.984 | Chrome steel |
Taper roller bearing |
30310 | 50 | 110 | 27 | 130 | 158 | 3800 | 4800 | 1.28 | Chrome steel |
Taper roller bearing |
30311 | 55 | 120 | 29 | 152 | 188 | 3400 | 4300 | 1.63 | Chrome steel |
Taper roller bearing |
30312 | 60 | 130 | 31 | 170 | 210 | 3200 | 4000 | 1.99 | Chrome steel |
Taper roller bearing |
30313 | 65 | 140 | 33 | 195 | 242 | 2800 | 3600 | 2.44 | Chrome steel |
Taper roller bearing |
30314 | 70 | 150 | 35 | 218 | 272 | 2600 | 3400 | 2.98 | Chrome steel |
Taper roller bearing |
30315 | 75 | 160 | 37 | 252 | 318 | 2400 | 3200 | 3.57 | Chrome steel |
Taper roller bearing |
30316 | 80 | 170 | 39 | 278 | 352 | 2200 | 3000 | 4.27 | Chrome steel |
Taper roller bearing |
30317 | 85 | 180 | 41 | 305 | 388 | 2000 | 2800 | 4.96 | Chrome steel |
Taper roller bearing |
30318 | 90 | 190 | 43 | 342 | 440 | 1900 | 2600 | 5.8 | Chrome steel |
Taper roller bearing |
30319 | 95 | 200 | 45 | 317 | 368 | 2000 | 2600 | 6.32 | Chrome steel |
Taper roller bearing |
30320 | 100 | 215 | 47 | 344 | 400 | 1800 | 2400 | 7.76 | Chrome steel |
Taper roller bearing |
30321 | 105 | 225 | 49 | 371 | 432 | 1700 | 2300 | 8.74 | Chrome steel |
Taper roller bearing |
30322 | 110 | 240 | 50 | 407 | 475 | 1600 | 2100 | 10.4 | Chrome steel |
Taper roller bearing |
30324 | 120 | 260 | 55 | 505 | 611 | 1500 | 2000 | 13.7 | Chrome steel |
Taper roller bearing |
30326 | 130 | 280 | 58 | 640 | 855 | 1100 | 1500 | 17.3 | Chrome steel |
Taper roller bearing |
30328 | 140 | 300 | 62 | 722 | 975 | 1000 | 1400 | 21.4 | Chrome steel |
Taper roller bearing |
33030 | 150 | 225 | 59 | 460 | 875 | 1300 | 1700 | 7.98 | Chrome steel |
Taper roller bearing |
30330 | 150 | 320 | 65 | 802 | 1090 | 950 | 1300 | 25.2 | Chrome steel |
Taper roller bearing |
30332 | 160 | 340 | 68 | 878 | 1190 | 900 | 1200 | 29.5 | Chrome steel |
Taper roller bearing |
30334 | 170 | 360 | 72 | 995 | 1370 | 850 | 1100 | 35.6 | Chrome steel |
Taper roller bearing |
30336 | 180 | 380 | 75 | 901 | 1110 | 940 | 1300 | 39.7 | Chrome steel |
Taper roller bearing |
30338 | 190 | 400 | 78 | 1010 | 1250 | 880 | 1200 | 46.2 | Chrome steel |
Taper roller bearing |
30340 | 200 | 420 | 80 | 1120 | 1450 | 820 | 1100 | 53.5 | Chrome steel |
Taper roller bearing |
30344 | 220 | 460 | 88 | 1260 | 1680 | 730 | 980 | 69 | Chrome steel |
Taper roller bearing |
30348 | 240 | 500 | 105 | - | - | - | - | 88.9 | Chrome steel |
Taper roller bearing |
30352 | 260 | 540 | 114 | - | - | - | - | 108 | Chrome steel |
Please contact us for more pictures of different packing.
Universal Packing
|
Without any logo on bearings or packing.
|
JDZ Packing
|
With our brand JDZ on bearings and packing.
|
Customized Packing
|
Depends on buyer's requirements.
|
Original Brand Packing
|
Bearing and packing are both original. Please contact us for pictures.
|
100% Quality inspection to ensure the bearings are with good quality before shipping.
1. Q: Are you trading company or manufacturer ?
A: We have our own factory , our type is factory + trade.
2. Q: Could you accept OEM and customize?
A: Yes, we can customize products according to your sample or drawing.
3. Q: How long is your delivery time?
A: If stock, within 7 days to ship or based on your order quantity.
4. Q: Could you supply sample for free?
A: Yes, we can offer the sample for free,do you mind to buy a "ticket" for her?
More details, please contact with us. Thanks for your time!