Page 208 - needle bearings

Needle roller bearings with thrust ball bearings
NTN

With inner ring

Type NKXʴʴIR
Type NKXʝʝZʴʴIR

Type NKXʴIR Type NKXʝZʴIR
(Open type) (With cover)

d 7ʙ60mm

Boundary dimensions Basic load ratings
dynamic static dynamic static dynamic static dynamic static
N kgf N kgf
d dw D D1 D2 B C C1 C2 F a rs min 1) r1s min 1) Radial Axial
–0 –0
–0.25 –0.20 Cr Cor Cr Cor Ca Coa Ca Coa
7 10 +0.040 19 24 25 16 23 9 6.5 10 19.7 0.3 0.3 5 450 6 450 555 660 10 000 14 000 1 020 1 420
+0.025
9 12 +0.050 21 26 27 16 23 9 6.5 12 21.7 0.3 0.3 6 000 7 700 615 785 10 300 15 400 1 050 1 570
+0.032
+0.050
12 15 +0.032 24 28 29 16 23 9 6.5 15 23.7 0.3 0.3 8 250 10 200 840 1 040 10 500 16 800 1 070 1 710
+0.050
14 17 +0.032 26 30 31 17 25 9 8 17 25.7 0.3 0.3 10 400 14 400 1 060 1 460 10 800 18 200 1 100 1 850
+0.061
17 20 +0.040 30 35 36 20 30 10 10.5 20 30.7 0.3 0.3 16 400 27 100 1 670 2 760 14 200 24 700 1 450 2 520
+0.061
20 25 +0.040 37 42 43 20 30 11 9.5 25 37.7 0.6 0.3 14 200 24 000 1 450 2 450 19 600 37 000 1 990 3 800
+0.061
25 30 +0.040 42 47 48 20 30 11 9.5 30 42.7 0.6 0.3 22 300 39 500 2 280 4 000 20 400 42 000 2 080 4 300
+0.075
30 35 +0.050 47 52 53 20 30 12 9 35 47.7 0.6 0.3 20 000 36 000 2 040 3 650 20 400 44 500 2 080 4 550
+0.075
35 40 +0.050 52 60 61 20 32 13 10 40 55.7 0.6 0.3 25 900 52 500 2 650 5 350 26 900 63 000 2 740 6 400
+0.075
40 45 +0.050 58 65 66.5 20 32 14 9 45 60.5 0.6 0.3 27 600 59 000 2 810 6 000 27 900 69 000 2 840 7 050
45 50 +0.075 62 70 71.5 25 35 14 10 50 65.5 0.6 0.6 27 900 62 000 2 850 6 300 28 800 75 500 2 930 7 700
+0.050
+0.090
50 60 +0.060 72 85 86.5 25 40 17 12 60 80.5 1 1 29 800 71 500 3 050 7 300 41 500 113 000 4 200 11 500
+0.090
60 70 +0.060 85 95 96.5 25 40 18 11 70 90.5 1 1 36 500 86 000 3 700 8 750 43 000 127 000 4 400 12 900

Note 1) Allowable minimum chamfer dimension r.
Remarks: Nominal code number of inner ring comprises IR. Bore diameterʷouter diameterʷwidth.
B-146