NTN - Large Bearings

Spherical Roller Bearings
B
r
r
D
d
d
Cylindrical bore
Tapered bore
taper 1:12
d 1,0601,800mm
Boundary dimensions Basic load ratings Bearing numbers Abutment and
dynamic static dynamic static fillet dimensions
mm kN kgf mm
d D B r s min
1
Cylindrical tapered 2 d a D a r as
C r C or C r C or bore bore min max max
1,060
1,120
1,180
1,200
1,250
1,320
1,400
1,500
1,800
1,500 340 9.5 13,100 32,000 1,340,000 3,250,000 2P21202 2P21202K 1,104 1,456 8
1,500 438 9.5 17,800 47,000 1,810,000 4,800,000 240/1060B 240/1060BK30 1,104 1,456 8
1,360 180 6 6,200 18,700 630,000 1,900,000 238/1120 238/1120K 1,148 1,332 5
1,460 250 7.5 9,850 26,700 1,000,000 2,720,000 239/1120 239/1120K 1,156 1,424 6
1,580 345 9.5 15,600 39,000 1,590,000 4,000,000 230/1120B 230/1120BK 1,164 1,536 8
1,580 462 9.5 19,500 52,500 1,990,000 5,350,000 240/1120B 240/1120BK30 1,164 1,536 8
1,420 180 6 6,350 19,700 650,000 2,010,000 238/1180 238/1180K 1,208 1,392 5
1,540 272 7.5 11,000 29,800 1,120,000 3,050,000 239/1180 239/1180K 1,216 1,504 6
1,540 355 7.5 13,700 40,500 1,390,000 4,150,000 249/1180 249/1180K30 1,216 1,504 6
1,660 475 9.5 20,700 55,500 2,110,000 5,650,000 240/1180B 240/1180BK30 1,224 1,616 8
1,700 410 9.5 17,600 44,500 1,800,000 4,550,000 2P24005 2P24005K 1,244 1,656 8
1,700 410 12 17,800 45,000 1,810,000 4,600,000 2P24007 2P24007K 1,254 1,646 10
1,630 280 7.5 12,100 33,500 1,230,000 3,400,000 239/1250 239/1250K 1,286 1,594 6
1,750 390 9.5 17,200 44,000 1,760,000 4,500,000 2P25002 2P25002K 1,294 1,706 8
1,720 300 7.5 13,600 38,000 1,390,000 3,900,000 239/1320 239/1320K 1,356 1,684 6
1,850 480 12 22,200 58,500 2,270,000 5,950,000 2P26402 2P26402K 1,374 1,796 10
1,850 530 12 25,200 67,500 2,570,000 6,900,000 240/1320B 240/1320BK30 1,374 1,796 10
1,820 315 9.5 15,100 43,000 1,540,000 4,400,000 239/1400 239/1400K 1,444 1,776 8
1,820 315 7.5 12,300 41,500 1,260,000 4,200,000 248/1500 248/1500K30 1,536 1,784 6
2,180 375 9.5 17,500 60,500 1,790,000 6,200,000 248/1800 248/1800K30 1,844 2,136 8
1 Smallest allowable dimension for chamfer dimension r.
2 Bearings appended with "K" have a tapered bore ratio of 1:12; bearings appended with "K30" have a tapered bore ratio of 1:30.
Remarks: 1. Bearing numbers marked "" are C type. B-224