Page 138 - needle bearings

Machined-ring needle roller bearings
NTN

With inner ring

Type NA48 C
r
Type NA49
r
Type NA59 s
Type NKʴʴIR
ПD ПdПF

d 130ʙ280mm

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
130 180 67 1.5 150 1.5 294 000 685 000 30 000 70 000 1 800 2 700 NA5926

175 35 1.1 155 1 121 000 315 000 12 300 32 500 1 700 2 600 NA4828
180 32 1.5 155 ʕ 114 000 252 000 11 600 25 700 1 700 2 600 NK155/32ʴIR140ʷ155ʷ32
140 180 42 1.5 155 ʕ 156 000 380 000 16 000 38 500 1 700 2 600 NK155/42ʴIR140ʷ155ʷ42
190 50 1.5 160 1.5 209 000 485 000 21 300 49 500 1 700 2 500 NA4928
190 67 1.5 160 1.5 310 000 755 000 31 500 77 000 1 700 2 500 NA5928
190 32 1.5 165 ʕ 117 000 265 000 11 900 27 000 1 600 2 400 NK165/32ʴIR150ʷ165ʷ32
190 40 1.1 165 1.5 152 000 390 000 15 500 40 000 1 600 2 400 NA4830
150
190 42 1.5 165 ʕ 160 000 400 000 16 300 40 500 1 600 2 400 NK165/42ʴIR150ʷ165ʷ42
210 60 2 170 1.5 261 000 610 000 26 600 62 500 1 600 2 400 NA4930
200 40 1.1 175 1.5 160 000 425 000 16 300 43 500 1 500 2 300 NA4832
160
220 60 2 180 1.5 270 000 650 000 27 600 66 500 1 500 2 200 NA4932
215 45 1.1 185 1.5 185 000 495 000 18 800 50 500 1 500 2 200 NA4834
170
230 60 2 190 1.5 279 000 690 000 28 500 70 500 1 400 2 100 NA4934
225 45 1.1 195 1.5 195 000 540 000 19 800 55 000 1 400 2 100 NA4836
180
250 69 2 205 1.5 375 000 890 000 38 500 90 500 1 300 2 000 NA4936
240 50 1.5 210 1.5 227 000 680 000 23 200 69 000 1 300 1 900 NA4838
190
260 69 2 215 1.5 390 000 945 000 40 000 96 500 1 300 1 900 NA4938
250 50 1.5 220 1.5 231 000 705 000 23 600 71 500 1 200 1 800 NA4840
200
280 80 2.1 225 1.5 505 000 1 180 000 51 500 120 000 1 200 1 800 NA4940
270 50 1.5 240 1.5 244 000 780 000 24 900 79 500 1 100 1 700 NA4844
220
300 80 2.1 245 1.5 525 000 1 270 000 53 500 129 000 1 100 1 600 NA4944
300 60 2 265 2 360 000 1 080 000 37 000 110 000 1 000 1 500 NA4848
240
320 80 2.1 265 2 540 000 1 350 000 55 000 138 000 1 000 1 500 NA4948
320 60 2 285 2 375 000 1 160 000 38 000 119 000 950 1 400 NA4852
260
360 100 2.1 290 2 805 000 1 900 000 82 000 193 000 950 1 400 NA4952
350 69 2 305 2.5 455 000 1 300 000 46 500 133 000 850 1 300 NA4856
280
380 100 2.1 310 2.5 835 000 2 030 000 85 000 207 000 850 1 300 NA4956

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-76