Page 124 - needle bearings

Machined-ring needle roller bearings
NTN

Without Inner Ring
C C
r r
Type RNA49
Type RNA59
Type RNA69
Type NK ПD ПFW ПD ПFW

Type RNA48 Type RNA69ʝR
Type RNA49ʝRɼType RNA49
RNA59 type
Type NKʝRɼType NK

FW 63ʙ85mm

Boundary dimensions Basic load ratings Limiting speeds Bearing Abutment Mass
dynamic static dynamic static numbers dimensions
mm N kgf r/min mm kg
grease oil Da ras
Fw D C rs min 1) Cr Cor Cr Cor max max (approx.)
63 +0.049 80 45 1 94 000 183 000 9 600 18 600 4 300 6 500 RNA6911R 75 1 0.470
+0.030
78 25 0.6 45 000 98 000 4 550 10 000 4 000 6 000 NK65/25R 74 0.6 0.221
+0.049
65 +0.030
78 35 0.6 60 000 142 000 6 100 14 400 4 000 6 000 NK65/35R 74 0.6 0.310
82 25 1 44 500 89 000 4 500 9 050 4 000 6 000 NK68/25R 77 0.6 0.241
82 35 0.6 63 000 139 000 6 400 14 200 4 000 6 000 NK68/35R 78 0.6 0.338
+0.049
68 +0.030 85 25 1 61 500 108 000 6 250 11 000 4 000 6 000 RNA4912R 80 1 0.275
85 34 1 80 500 153 000 8 200 15 600 4 000 6 000 RNA5912 80 1 0.408
85 45 1 95 500 191 000 9 750 19 400 4 000 6 000 RNA6912R 80 1 0.488
85 25 0.6 45 000 91 500 4 600 9 350 3 700 5 500 NK70/25R 81 0.6 0.275
+0.049
70 +0.030
85 35 0.6 64 000 144 000 6 550 14 700 3 700 5 500 NK70/35R 81 0.6 0.386
90 25 1 62 500 112 000 6 350 11 400 3 700 5 500 RNA4913R 85 1 0.312
+0.049
72 +0.030 90 34 1 84 000 165 000 8 600 16 800 3 700 5 500 RNA5913 85 1 0.462
90 45 1 97 000 198 000 9 900 20 200 3 700 5 500 RNA6913R 85 1 0.520

+0.049 90 25 0.6 54 000 100 000 5 500 10 200 3 700 5 500 NK73/25R 86 0.6 0.302
73 +0.030
90 35 0.6 76 500 156 000 7 800 16 000 3 700 5 500 NK73/35R 86 0.6 0.428
92 25 0.6 55 000 104 000 5 600 10 600 3 700 5 500 NK75/25R 88 0.6 0.315
+0.049
75 +0.030
92 35 0.6 78 000 162 000 7 950 16 500 3 700 5 500 NK75/35R 88 0.6 0.492
95 25 1 57 000 119 000 5 800 12 200 3 300 5 000 NK80/25R 90 1 0.301
95 35 1 79 500 184 000 8 150 18 700 3 300 5 000 NK80/35R 90 1 0.425
+0.049
80 +0.030 100 30 1 85 500 156 000 8 750 15 900 3 300 5 000 RNA4914R 95 1 0.460
100 40 1 103 000 187 000 10 500 19 100 3 300 5 000 RNA5914 95 1 0.706
100 54 1 130 000 267 000 13 300 27 200 3 300 5 000 RNA6914R 95 1 0.857
105 25 1 70 500 123 000 7 200 12 600 3 100 4 700 NK85/25R 100 1 0.404
105 30 1 87 000 162 000 8 900 16 500 3 100 4 700 RNA4915R 100 1 0.489
+0.058
85 +0.036 105 35 1 100 000 193 000 10 200 19 700 3 100 4 700 NK85/35R 100 1 0.517
105 40 1 109 000 205 000 11 100 20 900 3 100 4 700 RNA5915 100 1 0.745
105 54 1 132 000 277 000 13 500 28 300 3 100 4 700 RNA6915R 100 1 0.935

Note 1) Allowable minimum chamfer dimension r.

B-62