NTN - Large Bearings

Angular Contact Ball Bearings SingleDuplex
r
B
r1
2B
2B
C
2C
ra
r
r
ra
D
d
D
d
Da
da
B
2B
a
a
a
a
a
single
d 200250mm
back-to-back
arrangement
(DB)
face-to-face
arrangement
(DF)
single
back-to-back
arrangement
(DB)
Boundary dimensions contact Basic load ratings Bearing Drawing 1 Load Mass
angle dynamic static dynamic static numbers No. center
mm single single single
kN kgf mm kg
d D B C r s min 2 r ls min
2
C r C or C r C or a (approx.)
200
203.2
220
230
240
250 24 1.5 1 30 87.0 122 8,850 12,400 7840 A 77 2.68
279.5 38 2.5 1.5 40 165 202 16,800 20,600 SF4006 A 119.5 7.15
280 38 2.1 1.1 30 185 231 18,900 23,600 7940 A 88.5 7.15
289.5 38 2.5 1.5 40 188 238 19,200 24,200 SF4017 C 122 8.25
310 51 2.1 1.1 30 252 325 25,700 33,000 7040 A 99 14
310 51 2.1 1.1 40 226 293 23,000 29,900 7040B A 132.5 14.1
360 58 4 1.5 30 335 450 34,500 46,000 7240 A 110 25.3
360 58 4 1.5 40 305 410 31,000 41,500 7240B A 146 25.3
420 80 5 2 30 450 605 46,000 62,000 7340 A 130 53.1
420 80 5 2 40 410 555 42,000 56,500 7340B A 170 53.1
330.2 88.9 3 1.5 30 219 285 22,400 29,100 SF4104 A 99 14.7
270 24 1.5 1 30 89.0 131 9,100 13,300 7844 A 82.5 2.91
300 38 2.1 1.1 30 187 239 19,000 24,300 7944 A 94 7.74
300 38 35 2.5 1.5 40 149 189 15,200 19,300 SF4407 F 126.5 7.25
309.5 38 2.1 1.1 40 190 246 19,400 25,100 SF4421 B 130 8.9
309.5 38 2.1 1.1 40 190 246 19,400 25,100 SF4433 C 130 8.9
319.5 46 2.1 1.1 35 226 299 23,000 30,500 SF4438 C 117.5 12.2
340 56 3 1.1 30 286 390 29,100 39,500 7044 A 109 18.2
340 56 3 1.1 40 238 325 24,300 33,000 7044B A 145.5 18.4
400 65 4 1.5 30 345 485 35,000 49,500 7244 A 122 37.1
460 88 5 2 30 495 725 50,500 74,000 7344 A 142 72.4
329.5 40 2.5 1.5 40 154 202 15,700 20,600 SF4614 E 135.5 11
300 28 2 1 30 101 155 10,300 15,800 7848 A 92 4.49
320 38 2.1 1.1 30 193 255 19,600 26,000 7948 A 100 8.34
329.5 40 2.1 1.1 30 221 305 22,600 31,000 SF4839 C 102.5 10
329.5 40 2.5 1.5 40 197 265 20,100 27,000 SF4814 A 139.5 10.1
329.5 40 2.5 1.5 40 197 265 20,100 27,000 SF4818 B 139.5 10.1
340 40 2.5 1.5 30 211 289 21,500 29,400 SF4802 A 160.5 11.5
360 56 3 1.1 30 279 400 28,500 40,500 7048 A 114.5 19.5
360 56 3 1.1 40 249 355 25,400 36,000 7048B A 154 19.8
440 72 4 1.5 30 420 630 42,500 64,500 7248 A 135.5 49.8
500 95 5 2 30 515 795 52,500 81,000 7348 A 154.5 92.2
250
340 38 2.5 1 40 169 222 17,200 22,600 SF5005 F 141.5 9.55
349.5 46 3 1.5 30 233 325 23,700 33,000 SF5004 A 109.5 13.6
1 Drawing details are shown in Page B-15.
2 Smallest allowable dimension for chamfer dimension r or r1.
B-24