Page 234 - needle bearings
P. 234
Roller followers: Yoke-type track rollers
NTN
Metric series
B
Type NUTR2 C
Type NUTR3
r
Rʹ500
ПD Пd ПF Пe
D 35ʙ110mm
Boundary dimensions Basic load ratings Load ratings of truck Limiting Bearing 2) Mass
mm dynamic static dynamic static speeds numbers
N kgf N kgf r/min kg
D B C d e Fw rs min 1) grease
0
ʵ0.05 Cr Cor Cr Cor (approx.)
35 19 0 18 15 20 19 0.3 22 300 25 700 2 280 2 620 3 200 11 900 325 1 220 5 500 NUTR202 0.100
ʵ0.210
0
40 21 ʵ0.210 20 17 22 21.5 0.3 24 100 29 100 2 450 2 970 3 850 14 500 390 1 480 4 700 NUTR203 0.147
0
42 19 ʵ0.210 18 15 20 19 0.3 22 300 25 700 2 280 2 620 4 100 14 300 415 1 460 5 500 NUTR302 0.160
20 17 22 21.5 0.3 24 100 29 100 2 450 2 970 4 700 17 000 480 1 740 4 700 NUTR303 0.222
21 0
47 ʵ0.210
25 24 20 27 25.5 0.3 38 500 48 000 3 950 4 900 4 700 21 000 480 2 150 4 000 NUTR204 0.245
24 20 27 25.5 0.3 38 500 48 000 3 950 4 900 5 550 23 300 565 2 370 4 000 NUTR304 0.321
25 0
52 ʵ0.210
25 24 25 31 30 0.3 42 500 57 500 4 350 5 850 5 550 23 300 565 2 370 3 300 NUTR205 0.281
25 0 24 25 31 30 0.3 42 500 57 500 4 350 5 850 6 950 27 800 710 2 830 3 300 NUTR305 0.450
62 ʵ0.210
29 28 30 38 35 0.3 56 500 72 500 5 750 7 400 6 950 33 000 710 3 350 2 900 NUTR206 0.466
29 0 28 30 38 35 0.3 56 500 72 500 5 750 7 400 8 050 38 500 820 3 900 2 900 NUTR306 0.697
72 ʵ0.210
29 28 35 44 41.5 0.6 62 000 85 500 6 350 8 700 8 050 37 000 820 3 750 2 400 NUTR207 0.630
0
29 ʵ0.210 28 35 44 41.5 0.6 62 000 85 500 6 350 8 700 9 800 41 000 1 000 4 150 2 400 NUTR307 0.840
80 0
32 30 40 51 47.5 0.6 87 000 125 000 8 850 12 700 9 800 44 500 1 000 4 500 2 100 NUTR208 0.817
ʵ0.250
0
85 32 ʵ0.250 30 45 55 52.5 0.6 92 000 137 000 9 350 14 000 10 400 47 000 1 060 4 800 1 900 NUTR209 0.883
32 0 30 40 51 47.5 0.6 87 000 125 000 8 850 12 700 11 400 50 000 1 160 5 100 2 100 NUTR308 1.13
90 ʵ0.250
32 30 50 60 57 0.6 96 500 150 000 9 800 15 300 11 400 50 000 1 160 5 100 1 800 NUTR210 0.950
0
100 32 ʵ0.250 30 45 55 52.5 0.6 92 000 137 000 9 350 14 000 13 000 55 500 1 330 5 650 1 900 NUTR309 1.40
110 32 0 30 50 60 57 0.6 96 500 150 000 9 800 15 300 14 700 61 000 1 500 6 200 1 800 NUTR310 1.69
ʵ0.250
Note 1) Allowable minimum chamfer dimension r.
2) For bearing with cylindrical outer surface, the nominal bearing is followed by "X". In this case, the bearing is manufactured with outer ring diameter tolerance
conforming to JIS Class-0. Ex. NUTR208X
B-172
