Page 230 - needle bearings

Roller followers: Yoke-type track rollers
NTN

Metric series
B
C
Type NATR
Type NATRʝʝLL
Type NATV
Type NATVʝʝLL
Rʹ500
ПD Пd ПF Пe

Type NATR Type NATRʝLL
(With cage) (Sealed type with cage)

D 16ʙ90mm

Boundary dimensions Basic load ratings Load ratings of truck Limiting speeds
dynamic static dynamic static
mm N kgf N kgf r/min
D B C d e Fw grease oil
0 Cr Cor Cr Cor
ʵ0.05
12 11 5 12 8 4 050 4 200 415 430 1 080 3 400 110 350 ˞19 000 ˞25 000
16 0
12 ʵ0.180 11 5 12 8 6 500 9 350 665 955 1 080 3 400 110 350 ˞13 000 ˞16 000
12 0 11 6 14 10 4 750 5 400 480 555 1 380 4 050 141 415 ˞15 000 ˞20 000
19 ʵ0.180
12 11 6 14 10 7 450 11 700 760 1 190 1 380 4 050 141 415 10 000 ˞13 000
15 0 14 8 19 12 6 900 7 700 705 785 1 900 6 650 193 680 ˞12 000 ˞16 000
24 ʵ0.180
15 14 8 19 12 10 700 16 200 1 090 1 650 1 900 6 650 193 680 8 500 ˞11 000
15 0 14 10 23 15 7 850 9 650 800 985 2 620 7 700 267 785 10 000 ˞13 000
30 ʵ0.180
15 14 10 23 15 12 000 20 300 1 230 2 070 2 620 7 700 267 785 6 500 8 500
15 0 14 12 25 17 8 850 11 700 900 1 190 2 860 8 200 291 835 9 000 ˞12 000
32 ʵ0.180
15 14 12 25 17 13 000 23 000 1 330 2 350 2 860 8 200 291 835 6 000 7 500
19 0 18 15 27 20 13 300 20 800 1 360 2 120 3 200 11 900 325 1 220 7 500 10 000
35 ʵ0.210
19 18 15 27 20 18 400 38 000 1 870 3 900 3 200 11 900 325 1 220 5 000 6 500
21 0 20 17 32 22 14 000 22 800 1 430 2 330 3 850 14 500 390 1 480 7 000 9 000
40 ʵ0.210
21 20 17 32 22 19 400 42 000 1 980 4 250 3 850 14 500 390 1 480 4 500 6 000
25 0 24 20 37 25 20 700 33 500 2 110 3 450 4 700 21 000 480 2 150 6 000 8 000
47 ʵ0.210
25 24 20 37 25 28 800 61 000 2 940 6 250 4 700 21 000 480 2 150 4 000 5 000
25 0 24 25 42 30 22 800 40 500 2 320 4 100 5 500 23 300 565 2 370 5 000 6 500
52 ʵ0.210
25 24 25 42 30 31 500 73 500 3 200 7 500 5 500 23 300 565 2 370 3 300 4 500
29 0 28 30 51 38 36 000 66 000 3 650 6 750 6 950 33 000 710 3 350 4 000 5 500
62 ʵ0.210
29 28 30 51 38 47 500 115 000 4 850 11 700 6 950 33 000 710 3 350 2 600 3 500
29 28 35 58 44.5 39 000 77 000 3 950 7 850 8 050 37 000 820 3 750 3 300 4 500
0
72 ʵ0.210
29 28 35 58 44.5 52 000 134 000 5 300 13 600 8 050 37 000 820 3 750 2 200 2 900
32 0 30 40 66 50 49 500 92 500 5 050 9 400 9 800 44 500 1 000 4 500 3 000 4 000
80 ʵ0.250
32 30 40 66 50 68 500 171 000 7 000 17 500 9 800 44 500 1 000 4 500 2 000 2 600
0
85 32 30 45 71 55 51 500 100 000 5 250 10 200 10 400 47 000 1 060 4 800 2 700 3 600
ʵ0.250
32 0 30 50 76 60 53 000 108 000 5 450 11 000 11 400 50 000 1 160 5 100 2 500 3 300
90 ʵ0.250
32 30 50 76 60 76 000 205 000 7 750 20 900 11 400 50 000 1 160 5 100 1 600 2 100
Note 1) 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. NATR5X
Remarks: For the follower with seal, the maximum revolutions is allowable up to 10 000 r/min.
B-168