| Customization: | Available |
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| Contact Angle: | 0 |
| Aligning: | 0 |
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Gcr15 Best Quality 30311 Taper Roller Bearing 
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Product Name |
Gcr15 Best Quality 30311 Taper Roller Bearing |
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Brand |
TFN / OEM |
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Model Number |
30311 |
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Dimension |
55x120x31.5mm |
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Ring Material |
Steel |
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Cage Material |
Steel |
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Precision |
P0, P6, P5, or as requested |
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Vibration |
ZV1, ZV2, ZV3, or as requested |
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Clearance |
C0,C2,C3, or as requested |
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Type |
302 series,303 series,313 series,322 series,323 series,329 series,331 series |
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Features |
Low friction ,Long service life ,Enhanced operational reliability ,Consistency of roller profiles and sizes ,Rigid bearing application,Running-in period with reduced temperature peaks ,Separable and interchangeable. |
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Quality standard |
ISO9001:2000/ SGS |
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Quality Control Process |
1.Assembly |
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2.Windage test |
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3.Cleaning |
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4.Rotary test |
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5.Greasing and gland |
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6.Noise inspection |
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7.Appearance inspection |
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8.Rust prevention |
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9.Product packaging |
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Application |
single row tapered roller bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads. The projection lines of the raceways meet at a common point on the bearing axis to provide a true rolling action and therefore low frictional moments during operation. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle, which is usually between 10° and 30°, is related to the calculation factor e ,the larger the value of e, the larger the contact angle. |
Other taper roller bearing models :
| Bearing No. | Dimension(mm) | Basic Load rating(KN) | Weight | |||||||
| d | D | T | B | C | R | r | Cr | Cor | (kg) | |
| 30300 Series | ||||||||||
| 30303 Bearing | 17 | 47 | 15.25 | 14 | 12 | 1 | 1 | 27.4 | 24.5 | 0.129 |
| 30304 Bearing | 20 | 52 | 16.25 | 15 | 13 | 1 | 1.5 | 30.5 | 28.4 | 0.165 |
| 30305 Bearing | 25 | 62 | 18.25 | 17 | 15 | 1.5 | 1.5 | 48.2 | 46.9 | 0.263 |
| 30306 Bearing | 30 | 72 | 20.75 | 19 | 16 | 1.5 | 1.5 | 59.6 | 60.1 | 0.387 |
| 30307 Bearing | 35 | 80 | 22.75 | 21 | 18 | 2 | 1.5 | 75.3 | 82.6 | 0.515 |
| 30308 Bearing | 40 | 90 | 25.25 | 23 | 20 | 2 | 1.5 | 90.6 | 101 | 0.747 |
| 30309 Bearing | 45 | 100 | 27.25 | 25 | 22 | 2 | 1.5 | 113 | 128 | 0.984 |
| 30310 Bearing | 50 | 110 | 29.25 | 27 | 23 | 2.5 | 2 | 137 | 152 | 1.28 |
| 30311 Bearing | 55 | 120 | 31.5 | 29 | 25 | 2.5 | 2 | 149 | 170 | 1.63 |
| 30312 Bearing | 60 | 130 | 33.5 | 31 | 26 | 3 | 2.5 | 171.4 | 210 | 1.99 |
| 30313 Bearing | 65 | 140 | 36 | 33 | 23 | 3 | 2.5 | 195.9 | 241.7 | 2.43 |
| 30314 Bearing | 70 | 150 | 38 | 35 | 25 | 3 | 2.5 | 219 | 271.7 | 2.94 |
| 30315 Bearing | 75 | 160 | 40 | 37 | 31 | 3 | 2.5 | 252.8 | 318.8 | 3.63 |
| 30316 Bearing | 80 | 170 | 42.5 | 39 | 27 | 3 | 2.5 | 278.8 | 352.5 | 4.07 |
| 30317 Bearing | 85 | 180 | 44.5 | 41 | 28 | 4 | 3 | 304.9 | 388.2 | 4.88 |
| 30318 Bearing | 90 | 190 | 46.5 | 43 | 36 | 4 | 3 | 341 | 341 | 5.65 |
| 30319 Bearing | 95 | 200 | 49.5 | 45 | 38 | 4 | 3 | 368 | 483 | 6.7 |
| 30320 Bearing | 100 | 215 | 51.5 | 47 | 39 | 4 | 3 | 402 | 490 | 8.05 |
| 30321 Bearing | 105 | 225 | 53.5 | 49 | 41 | 4 | 3 | 432 | 568 | 9.15 |
| 30322 Bearing | 110 | 240 | 54.5 | 50 | 42 | 4 | 3 | 471 | 619 | 11 |
| 30324 Bearing | 120 | 260 | 59.5 | 55 | 46 | 4 | 3 | 562 | 754 | 13.9 |
| 30326 Bearing | 130 | 280 | 63.75 | 58 | 49 | 5 | 4 | 605 | 780 | 16.6 |
| 30328 Bearing | 140 | 300 | 67.75 | 62 | 53 | 5 | 4 | 721 | 985 | 20.1 |
| 30330 Bearing | 150 | 320 | 72 | 65 | 55 | 5 | 4 | 825 | 1060 | 24.2 |
Certificate
FAQ
Q:Why choose us?
A:1. We are professional,have factory in shandong for many years.
2. We are experienced for 10 years.
3. We can offer a various kind of bearing with high quality:Z1V1,Z2V2,Z3V3 and best price
Q:How is the quality of your products?
A:The same quality, we have lower price.The same price,we have better quality.
Q:Except Taper Roller Bearing what other main bearing do you have?
A: Deep groove ball bearing,Cylindrical roller bearing,Thrust roller bearing,Spherical roller bearing,Angular contact ball bearing etc.
Q:Can I get 30311 free samples?
A:We will charge a little sample fee for our regular designs or customized ones, These charges will be refunded to you when your mass production order is confirmed.
Q:Can you make the products as our requirement?
A:We have more than 10years' OEM experience. We supply products fo more than 300 automobile parts factories.
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