Supporting Roller Bearing NATR20
Demension: 20×47×25mm , Weight: 246g.
SHAPE LOCATION TOLERANCE SHOULD BE TO CURRENT STANDARD;
The supporting roller has the thick-wall outer ring, by which the roller can be rolled directly at the rollway and withstand the large load. The supporting rollers made by our company include STO RSTO, NA222RS,
RN222RS, NATR NARTPP, NATV NATVPP,NUTR NAST. Supporting Roller.
The curve roller is composed of a bolt, thrust collar, outer ring, needle and cage assembly or full complement rolling body. It has the thick-wall outer ring with camber outside face, withstanding the high radial force.The curve rollers made by our company include KR, KRE, KRV, KRVE, NUKR and NUKRE. Model KRPP,
KREPP, KRVPP, KRVEPP, NUKRPP cure roller
Model NATR, NATR…PP Supporting Roller Bering
Model NATV, NATV…PP Supporting Roller Bering
Model NATR supporting roller bearing includes outer ring, inner ring, needle cage assembly and baffle ring pressed and fixed in both sides of inner ring. Model NATR…PP support roller bearing has the seal ring. It has a large grease-storage space and can be used for a long time without adding lubricating grease.
The structure of Model NATV supporting roller bearing is same as that of Model NATR. Model NATV is the bearing with full of needles. It can withstand heavy load under the low speed. However it is necessary to add the
lubricating grease at regular intervals. Model NATV…PP supporting roller needle bearing has the seal ring structure.
If the surface of outer ring is cylinder face, the letter X shall be added after designation of bearing.
Model NUTR supporting roller is the double-row roller bearing with full of needles. The outer ring is guided
by shoulder. All parts of bearing is enclosed by the seal cover pressed in outer ring to form a complete unit. The seal cover and thrust baffle ring constitute the high-efficient gas seal. This kind of Model NUTR supporting roller needle bearing can withstand heavy load. Because of axial guide in rolling body, it can withstand the stock axial load even in the high speed.
If the surface of outer ring is cylinder face, the designation of bearing is NUYT…X
Shaft Diameter | Bearing Designation | Boudary Dimensions | Basic Load Rating | Limiting Speed |
Co | Cor | As yoke type track rollers |
without seal | Mass Approx | with seal | Mass Approx | d | D | B |
mm | Co | Cor | Oil |
g | g | mm | N | rpm |
5 | NATR 5 | 14 | NATR 5 PP | 14 | 5 | 16 | 12 | 3050 | 3000 | 2050 | 2400 | 22000 |
5 | NATV 5 | 15 | NATV 5 PP | 15 | 5 | 16 | 12 | 4500 | 6300 | 3680 | 4300 | 8500 |
6 | NATR 6 | 20 | NATR 6 PP | 20 | 6 | 19 | 12 | 3600 | 3650 | 2450 | 2850 | 20000 |
6 | NATV 6 | 21 | NATV 6 PP | 21 | 6 | 19 | 12 | 5700 | 8700 | 4600 | 6750 | 7000 |
8 | NATR 8 | 41 | NATR 8 PP | 41 | 8 | 24 | 15 | 4500 | 5400 | 3900 | 4500 | 5000 |
8 | NATV 8 | 42 | NATV 8 PP | 42 | 8 | 24 | 15 | 8600 | 12000 | 6700 | 9800 | 5500 |
10 | NATR 10 | 64 | NATR 10 PP | 64 | 10 | 30 | 15 | 6100 | 7800 | 4500 | 6900 | 11000 |
10 | NATV 10 | 65 | NATV 10 PP | 65 | 10 | 30 | 15 | 10900 | 17000 | 7600 | 11800 | 4500 |
12 | NATR 12 | 71 | NATR 12 PP | 71 | 12 | 32 | 15 | 6600 | 9800 | 4660 | 7000 | 9000 |
12 | NATV 12 | 72 | NATV 12 PP | 72 | 12 | 32 | 15 | 11800 | 19000 | 7800 | 1300 | 3900 |
15 | NATR 15 | 103 | NATR 15 PP | 103 | 15 | 35 | 19 | 10500 | 17500 | 7800 | 11500 | 7000 |
15 | NATV 15 | 105 | NATV 15 PP | 105 | 15 | 35 | 19 | 16000 | 32500 | 10200 | 20500 | 3400 |
17 | NATR 17 | 144 | NATR 17 PP | 144 | 17 | 40 | 21 | 11800 | 19400 | 9500 | 13500 | 6000 |
17 | NATV 17 | 152 | NATV 17 PP | 152 | 17 | 40 | 21 | 19600 | 37000 | 1200 | 23000 | 2900 |
20 | NATR 20 | 246 | NATR 20 PP | 246 | 20 | 47 | 25 | 17500 | 29800 | 13500 | 22500 | 4900 |
20 | NATV 20 | 254 | NATV 20 PP | 254 | 20 | 47 | 25 | 25800 | 57000 | 19000 | 39500 | 2600 |
25 | NATR 25 | 275 | NATR 25 PP | 275 | 25 | 52 | 25 | 19500 | 36500 | 13400 | 23500 | 3600 |
25 | NATV 25 | 285 | NATV 25 PP | 285 | 25 | 52 | 25 | 29000 | 69600 | 19800 | 40900 | 2100 |
30 | NATR 30 | 470 | NATR 30 PP | 470 | 30 | 62 | 29 | 31000 | 57500 | 20900 | 35500 | 2600 |
30 | NATV 30 | 481 | NATV 30 PP | 481 | 30 | 62 | 29 | 45000 | 10400 | 27800 | 60900 | 1700 |
35 | NATR 35 | 635 | NATR 35 PP | 635 | 35 | 72 | 29 | 34000 | 67500 | 22500 | 41000 | 2000 |
35 | NATV 35 | 647 | NATV 35 PP | 3477 | 35 | 72 | 29 | 50800 | 109500 | 30900 | 70800 | 1400 |
40 | NATR 40 | 805 | NATR 40 PP | 805 | 40 | 80 | 32 | 47000 | 91500 | 30900 | 56500 | 1700 |
40 | NATV 40 | 890 | NATV 40 PP | 890 | 40 | 80 | 32 | 64000 | 139000 | 39800 | 87800 | 1300 |
45 | NATR 45 | 910 | NATR 45 PP | 910 | 45 | 85 | 32 | 49100 | 98000 | 30600 | 56900 | 1500 |
50 | NATR 50 | 960 | NATR 50 PP | 960 | 50 | 90 | 32 | 50500 | 10600 | 30600 | 57500 | 1300 |
50 | NATV 50 | 990 | NATV 50 PP | 990 | 50 | 90 | 32 | 69500 | 18700 | 38700 | 90900 | 1000 |
Supporting Roller Bearing NATR20