Active Member
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[China]
Address: 6/F, Biobase HQ, No. 1, Gangxingyuan Street, Pilot Free Trade Zone (Jinan Area), Shandong Province, China
Contact name:George Pan
Silurian Bearing Factory |
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20*37*23mm needle roller bearing NA5904 with inner ring
Needle Roller Bearing
Feature
Suitable for high speed operation, very durable, without frequent
maintenance. The friction coefficient of such bearings, high speed
limit, simple structure, low manufacturing costs, easy to achieve
high manufacturing accuracy.
Types
1.Single-row tapered roller bearings
2.Double-row tapered roller bearings
3.Four-row tapered roller bearings
4.Double, four-row tapered roller bearings with multi-seal
Typical applications
Needle roller bearings are widely applied to machine tool spindles,
gear reduction units, automotive transaxles, transmissions, rolling
mill, mining, metallurgical industry, plastic machinery, home
appliances, electric motors, pumps, machinery and other automotive
components.
| bearing code | d | D | B | C | C0 | Pu | reference speed | limiting speed | mass |
| RNA 4822 | 120 | 140 | 30 | 93,5 | 232 | 27,5 | 3400 | 3800 | 0,67 |
| RNA 4824 | 130 | 150 | 30 | 99 | 255 | 30 | 3200 | 3600 | 0,73 |
| RNA 4826 | 145 | 165 | 35 | 119 | 325 | 37,5 | 2800 | 3200 | 0,99 |
| RNA 4828 | 155 | 175 | 35 | 121 | 345 | 38 | 2600 | 3000 | 1,05 |
| RNA 4830 | 165 | 190 | 40 | 147 | 415 | 46,5 | 2400 | 2800 | 1,60 |
| RNA 4832 | 175 | 200 | 40 | 157 | 450 | 50 | 2200 | 2600 | 1,70 |
| RNA 4834 | 185 | 215 | 45 | 179 | 520 | 57 | 2200 | 2400 | 2,55 |
| RNA 4836 | 195 | 225 | 45 | 190 | 570 | 60 | 2000 | 2400 | 2,70 |
| RNA 4838 | 210 | 240 | 50 | 220 | 710 | 73,5 | 1900 | 2200 | 3,20 |
| RNA 4840 | 220 | 250 | 50 | 224 | 735 | 75 | 1800 | 2000 | 3,35 |
| RNA 4844 | 240 | 270 | 50 | 238 | 815 | 81,5 | 1700 | 1900 | 3,60 |
| RNA 4848 | 265 | 300 | 60 | 347 | 1120 | 108 | 1500 | 1700 | 5,40 |
| RNA 4852 | 285 | 320 | 60 | 358 | 1200 | 114 | 1400 | 1500 | 5,80 |
| RNA 4856 | 305 | 350 | 69 | 429 | 1320 | 127 | 1300 | 1400 | 9,30 |
| RNA 4860 | 330 | 380 | 80 | 594 | 1800 | 170 | 1100 | 1300 | 12,5 |
| RNA 4864 | 350 | 400 | 80 | 605 | 1900 | 176 | 1100 | 1200 | 13,5 |
| RNA 4868 | 370 | 420 | 80 | 616 | 1960 | 180 | 1000 | 1200 | 14,0 |
| RNA 4872 | 390 | 440 | 80 | 627 | 2040 | 186 | 950 | 1100 | 15,0 |
| RNA 4876 | 415 | 480 | 100 | 968 | 3000 | 265 | 900 | 1000 | 26,0 |
| NA 4822 | 110 | 140 | 30 | 93,5 | 232 | 27,5 | 3400 | 3800 | 1,10 |
| NA 4824 | 120 | 150 | 30 | 99 | 255 | 30 | 3200 | 3600 | 1,15 |
| NA 4826 | 130 | 165 | 35 | 119 | 325 | 37,5 | 2800 | 3200 | 1,80 |
Package
| 1. Laser mark on the bearing; 2. Bearing wrapped by vacuum packaging ; 3. Outer color polybag + box + carton, industrial standard packaging; 4. According to your requirements.
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| Delivery | 1-3 days after payment received |
| Shipping port | Qingdao,Guangzhou,Shanghai |
Payment | 1.100%TT; 2.30% T/T in advance,70% against copy of B/L; 3.Paypal. |
♥1.Your inquiry will be reply within 2 hours.
♥2.Fast delivery,within 7 working days.
♥3.Packing: you will receive a Perfect product with strong outside
packing.
♥4.With advanced first-level facilities and testing equipment,to
insure no mistake on the dimension of the bearings.
♥5.No M.O.Q, Because we are manufacture.
♥6.24 hours on line,no limited to talk to us.
♥7.Return Policy:We gladly accept returns for item purchased within
a 30 day period, provided it is still in the original package, not
used nor damaged.
♥8.Warranty Claims :The Warranty covers any Defect of the product
for a period of 12 months. It does not cover items that are not
correctly installed or over tightened which may cause premature
failure. Installation or any other fee's are not refundable.
