Page 233 - needle bearings

Roller followers: Yoke-type track rollers
NTN

Type NACVʝXLL
(Full complement sealed type)

Load ratings of truck Limiting Bearing numbers Mass
speeds (approx.)
N kgf r/min kg
grease oil Type Type Type
NACVʝʝX 1 NACVʝʝXLL 1 NACVʝX
4 600 1 380 470 140 9 000 ˞11 000 NACV12X NACV12XLL 0.027

5 350 1 710 545 174 9 000 ˞11 000 NACV14X NACV14XLL 0.036
7 400 2 060 755 210 7 100 9 200 NACV16X NACV16XLL 0.059
8 350 2 430 850 248 7 100 9 200 NACV18X NACV18XLL 0.073
11 400 2 840 1 160 290 5 400 7 000 NACV20X NACV20XLL 0.109

12 500 3 250 1 280 330 5 400 7 000 NACV22X NACV22XLL 0.132
16 300 3 600 1 660 365 4 800 6 200 NACV24X NACV24XLL 0.177
17 600 4 050 1 800 410 4 800 6 200 NACV26X NACV26XLL 0.218
21 600 4 400 2 200 450 4 100 5 300 NACV28X NACV28XLL 0.281

23 200 4 850 2 360 495 4 100 5 300 NACV30X NACV30XLL 0.327
31 000 5 300 3 150 540 3 700 4 800 NACV32X NACV32XLL 0.454
35 000 6 200 3 550 635 3 700 4 800 NACV36X NACV36XLL 0.585
44 500 7 200 4 550 735 3 200 4 100 NACV40X NACV40XLL 0.902

49 000 8 250 5 000 840 3 200 4 100 NACV44X NACV44XLL 1.05
64 000 9 150 6 500 935 2 700 3 500 NACV48X NACV48XLL 1.39
69 000 10 000 7 050 1 020 2 700 3 500 NACV52X NACV52XLL 1.66
86 000 11 100 8 800 1 130 2 200 2 800 NACV56X NACV56XLL 2.19

112 500 13 200 11 500 1 350 2 200 2 800 NACV64X NACV64XLL 3.22
165 500 17 900 16 900 1 830 1 500 1 900 NACV80X NACV80XLL 6.08
239 500 22 100 24 400 2 250 1 200 1 500 NACV96X NACV96XLL 10.0

Remarks: For the follower with seal, the maximum revolutions is allowable up to 10 000 r/min.

B-171