Page 210 - needle bearings

Needle roller bearings with thrust cylindrical roller bearings
NTN

Without inner ring

Type NKXR
Type NKXRʝʝZ

Type NKXR Type NKXRʝZ
(Open type) (With cover)

FW 15ʙ50mm

Boundary dimensions Basic load ratings
dynamic static dynamic static
mm N kgf
Fw dw D D1 D2 C C1 C2 a rs min 1) Radial
–0 –0
–0.25 –0.20 Cr Cor Cr Cor
15 +0.027 15 +0.050 24 28 29 23 9 6.5 23.7 0.3 8 250 10 200 840 1 040
+0.016 +0.032
17 +0.027 17 +0.050 26 30 31 25 9 8 25.7 0.3 10 400 14 400 1 060 1 460
+0.016 +0.032
+0.033 +0.061
20 +0.020 20 +0.040 30 35 36 30 10 10.5 30.7 0.3 16 400 27 100 1 670 2 760
+0.033 +0.061
25 +0.020 25 +0.040 37 42 43 30 11 9.5 37.7 0.6 14 200 24 000 1 450 2 450
+0.033 +0.061
30 +0.020 30 +0.040 42 47 48 30 11 9.5 42.7 0.6 22 300 39 500 2 280 4 000
+0.041 +0.075
35 +0.025 35 +0.050 47 52 53 30 12 9 47.7 0.6 20 000 36 000 2 040 3 650
+0.041 +0.075
40 +0.025 40 +0.050 52 60 61 32 13 10 55.7 0.6 25 900 52 500 2 650 5 350
+0.041 +0.075
45 +0.025 45 +0.050 58 65 66.5 32 14 9 60.5 0.6 27 600 59 000 2 810 6 000
+0.041 +0.075
50 +0.025 50 +0.050 62 70 71.5 35 14 10 65.5 0.6 27 900 62 000 2 850 6 300

Note 1) Allowable minimum chamfer dimension r.

B-148