Guangzhou Zhonglu Automobile Bearing Co., LTD
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3780/20 3780/3720 SK Taper Roller Bearing/Rolling Bearings/Auto Parts
Tapered Roller Bearing Specification
| Product Name | 3780/20 3780/3720 taper roller bearing/rolling bearings/auto parts |
| Model NO. | 3780/20 3780/3720 |
| Size | standard size |
| Precision Rating | P0, P6, P5, P4, P2 |
| Material | Chrome steel (GCr15) |
| Dye corner | Black corner,light corner |
| Clearance | C0 C1 C2 C3 C4 C5 |
| Vibration & Noisy | Z1,Z2,Z3 V1,V2,V3 |
| Cage | Steel |
| Features | High Precision, High Speed, Long Life, High Reliability, Low Noise , Reduce Friction |
| Certification | ISO 9001:2008 |
| Packing | 1.Neutral Packing Bearing 2.Industrial Packing 3.Commercial Packing Bearing 4.Customize |
| Delivery Time | 15-25 Days After The Order is Confirmed |
| Shippment | 1.By Sea 2.By Air 3.By Express |
Taper Roller Bearing Description
Tapered roller bearings consist of four basic components including: the cone (inner ring), the cup (outer ring), tapered rollers, and a cage (roller retainer). The cone, cup and rollers carry the load while the cage spaces and retains the rollers on the cone. The cone, rollers and cage components of our tapered roller bearings are referred to as the cone assembly. Individual cup and cone components of our tapered roller bearings are available as well as the complete assembly. In addition, We offers a variety of configurations to our tapered roller bearings such as single-row, double-row
Tapered Roller Bearing Product number
| Part No. | BOUNDARY DIMENSIONS (in m.m.) | LOAD RATING | LIMITING SPEED (R.P.M.) | MASS | ||||||
| d | D | B | C | T | STATIC (Co) KN | DYNAMIC (C) KN | Grease | Oil | (~ Kg.) | |
| 370A / 362A | 50.8 | 88.9 | 22.225 | 16.513 | 20.638 | 91 | 76.5 | 4300 | 5600 | 0.51 |
| 28580 / 25821 | 50.8 | 92.075 | 25.4 | 19.845 | 24.607 | 116.1 | 84.2 | 4000 | 5300 | 0.7 |
| 455/452 | 50.8 | 107.95 | 29.317 | 27 | 32.557 | 148 | 115 | 3500 | 4700 | 1.34 |
| 3780 / 3720 | 50.8 | 93.264 | 30.302 | 23.812 | 30.162 | 148.9 | 110.9 | 4000 | 5300 | 0.84 |
| 33889 / 33822 | 50.8 | 95.25 | 28.575 | 22.225 | 27.783 | 140 | 107.3 | 3900 | 5200 | 0.88 |
| 45284 / 45220 | 50.8 | 104.775 | 30.958 | 23.812 | 30.162 | 169.7 | 130.3 | 3500 | 4700 | 1.19 |
| 45285 A / 45221 | 50.8 | 104.775 | 30.958 | 23.812 | 30.162 | 169.7 | 130.3 | 3500 | 4700 | 1.21 |
| HM 807010 | 50.8 | 104.775 | 36.512 | 28.575 | 36.512 | 189.6 | 139 | 3600 | 4600 | 1.445 |
| 72200C / 72487 | 50.8 | 123.825 | 32.791 | 25.4 | 36.512 | 190.1 | 155.8 | 2900 | 3900 | 2.142 |
| 539 / 532 X | 53.975 | 107.95 | 36.957 | 28.575 | 36.512 | 191.2 | 149.3 | 3600 | 4800 | 1.5 |
Taper Roller Bearings Applications
Tapered roller bearings feature a cup and cone assembly. The cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.
