Page 189 - needle bearings

Inner rings
NTN

d 170ʙ380mm

Boundary dimensions Bearing numbers Abutment Mass
dimensions
mm mm kg
da ras
d F 1) B rs min 2) t min max (approx.)
185 45 1.1 3 IR170ʷʷ185ʷʷ 45 176.5 1 1.45
170 ʵ0.013
190 ʵ0.043 60 2 3 IR170ʷʷ190ʷʷ 60 179 2 2.65
195 45 1.1 3 IR180ʷʷ195ʷʷ 45 186.5 1 1.51
180 ʵ0.013
205 ʵ0.043 69 2 3 IR180ʷʷ205ʷʷ 69 189 2 4.10
210 50 1.5 3.5 IR190ʷʷ210ʷʷ 50 198 1.5 2.41
190 ʵ0.020
215 ʵ0.050 69 2 3.5 IR190ʷʷ215ʷʷ 69 199 2 4.10
220 50 1.5 3.5 IR200ʷʷ220ʷʷ 50 208 1.5 2.49
200 ʵ0.020
225 ʵ0.050 80 2.1 3.5 IR200ʷʷ225ʷʷ 80 211 2 5.10
240 ʵ0.033 50 1.5 3.5 IR220ʷʷ240ʷʷ 50 228 1.5 2.75
220 ʵ0.063
245 80 2.1 3.5 IR220ʷʷ245ʷʷ 80 231 2 5.70
265 ʵ0.037 60 2 3.5 IR240ʷʷ265ʷʷ 60 249 2 4.60
240 ʵ0.069
265 80 2.1 3.5 IR240ʷʷ265ʷʷ 80 251 2 6.30
285 ʵ0.064 60 2 4 IR260ʷʷ285ʷʷ 60 269 2 4.98
260 ʵ0.092
290 100 2.1 4 IR260ʷʷ290ʷʷ100 271 2 10.0
305 ʵ0.064 69 2 4 IR280ʷʷ305ʷʷ 69 289 2 6.20
280 ʵ0.092
310 100 2.1 4 IR280ʷʷ310ʷʷ100 291 2 10.8
330 ʵ0.062 80 2.1 4 IR300ʷʷ330ʷʷ 80 311 2 9.30
300 ʵ0.098
340 118 3 4 IR300ʷʷ340ʷʷ118 313 2.5 18.5
350 ʵ0.062 80 2.1 5 IR320ʷʷ350ʷʷ 80 331 2 9.80
320 ʵ0.098
360 118 3 5 IR320ʷʷ360ʷʷ118 333 2.5 20.0
370 ʵ0.062 80 2.1 5 IR340ʷʷ370ʷʷ 80 351 2 10.1
340 ʵ0.098
380 118 3 5 IR340ʷʷ380ʷʷ118 353 2.5 22.0
390 ʵ0.090 80 2.1 5 IR360ʷʷ390ʷʷ 80 371 2 10.9
360 ʵ0.126
400 118 3 5 IR360ʷʷ400ʷʷ118 373 2.5 22.0
415 ʵ0.080 100 2.1 5 IR380ʷʷ415ʷʷ100 391 2 18.5
380 ʵ0.120
430 140 4 5 IR380ʷʷ430ʷʷ140 396 3 35.0

Note 1) Dimensional tolerance to secure ordinary clearance when any of these inner rings is combined with needle roller bearing with no inner ring.
2) Allowable minimum chamfer dimension r .
B-127