Page 128 - needle bearings

Machined-ring needle roller bearings
NTN

With inner ring
C C C
r r r
Type NA49
r r r
Type NA59
Type NA69
Type NKʴʴIR ПD Пd ПF ПD Пd ПF ПD Пd ПF

Type NA49 ʢdʽ9mmʣ Type NKʴIR ʢdʽ9mmʣ Type NA49ʝRʢdʾ10mmʣ
Type NA59
Type NA69ʝR
Type NKʴIR ʢdʾ10mmʣ

d 5ʙ17mm

Boundary dimensions Basic load ratings Limiting speeds Bearing numbers
dynamic static dynamic static
mm N kgf r/min
grease oil
d D C rs min 1) F s 2) Cr Cor Cr Cor
13 10 0.15 7 ʕ 2 670 2 350 272 239 23 000 34 000 NA495T2
5 15 12 0.3 8 1.5 4 000 4 100 410 420 21 000 32 000 NK8/12T2ʴIR5ʷ8ʷ12
15 16 0.3 8 2 4 850 5 200 495 535 21 000 32 000 NK8/16T2ʴIR5ʷ8ʷ16
15 10 0.15 8 ʕ 3 150 3 000 320 305 21 000 32 000 NA496
6 16 12 0.3 9 1.5 4 550 5 000 465 510 20 000 30 000 NK9/12T2ʴIR6ʷ9ʷ12
16 16 0.3 9 2 5 500 6 400 560 650 20 000 30 000 NK9/16T2ʴIR6ʷ9ʷ16

17 10 0.15 9 ʕ 3 600 3 650 365 375 20 000 30 000 NA497
7 17 12 0.3 10 1.5 4 550 5 100 460 520 19 000 28 000 NK10/12T2ʴIR7ʷ10ʷ12
17 16 0.3 10 2 5 450 6 450 555 660 19 000 28 000 NK10/16ʴIR7ʷ10ʷ16
8 19 11 0.15 10 ʕ 4 300 3 950 435 405 19 000 28 000 NA498

19 12 0.3 12 1.5 5 000 6 100 510 620 17 000 26 000 NK12/12ʴIR9ʷ12ʷ12
9 19 16 0.3 12 2 6 000 7 700 615 785 17 000 26 000 NK12/16ʴIR9ʷ12ʷ16
20 11 0.3 12 ʕ 4 850 4 900 495 500 17 000 26 000 NA499

22 13 0.3 14 0.5 8 600 9 200 875 935 16 000 24 000 NA4900R
10 22 16 0.3 14 0.5 10 300 11 500 1 050 1 170 16 000 24 000 NK14/16RʴIR10ʷ14ʷ16
22 20 0.3 14 0.5 13 000 15 600 1 330 1 590 16 000 24 000 NK14/20RʴIR10ʷ14ʷ20
24 13 0.3 16 0.5 9 550 10 900 975 1 110 15 000 23 000 NA4901R
24 16 0.3 16 0.5 12 200 14 900 1 240 1 520 15 000 23 000 NK16/16RʴIR12ʷ16ʷ16
12
24 20 0.3 16 0.5 14 600 18 800 1 490 1 920 15 000 23 000 NK16/20RʴIR12ʷ16ʷ20
24 22 0.3 16 1 15 400 20 000 1 570 2 040 15 000 23 000 NA6901R
27 16 0.3 19 0.5 13 300 17 400 1 350 1 780 14 000 21 000 NK19/16RʴIR15ʷ19ʷ16
27 20 0.3 19 0.5 16 000 22 200 1 630 2 260 14 000 21 000 NK19/20RʴIR15ʷ19ʷ20
15 28 13 0.3 20 0.5 10 300 12 800 1 050 1 310 13 000 20 000 NA4902R
28 18 0.3 20 0.5 14 100 19 100 1 440 1 950 13 000 20 000 NA5902
28 23 0.3 20 1 17 600 25 300 1 790 2 580 13 000 20 000 NA6902R
29 16 0.3 21 0.5 13 700 18 700 1 400 1 910 13 000 19 000 NK21/16RʴIR17ʷ21ʷ16
29 20 0.3 21 0.5 18 300 27 100 1 860 2 760 13 000 19 000 NK21/20RʴIR17ʷ21ʷ20
17
30 13 0.3 22 0.5 11 200 14 600 1 140 1 490 12 000 18 000 NA4903R
30 18 0.3 22 0.5 15 200 21 700 1 550 2 210 12 000 18 000 NA5903

Note 1) Allowable minimum chamfer dimension r . 2) Allowable axial stroking value of inner ring against outer ring.
Remarks: Nominal code number of inner ring (IR) comprises the codes of IR bore diameterʷouter diameterʷwidth.
B-66