NTN - Large Bearings

Four Row Tapered Roller Bearings
Sa
Da
ra
r1a
da
Equivalent bearing load
dynamic
PrXFrYFa
Fa
Fr
e
Fa
e Fr
X Y X Y
1 Y1 0.67 Y2
static
PorFrYoFa
For values of e, Y2 and Yo
see the table below.
Bearing numbers Abutment and fillet dimensions Constant Axial load factors Mass
mm
kg
d a D a S a r as r las
min max max e Y 1 Y 2 Y o (approx.)
623044 250.5 312.5 5.5 2.5 3 0.37 1.80 2.69 1.76 63.2
CRO-4409 250.5 312.5 6 2.5 2.5 0.37 1.80 2.69 1.76 64.5
T-M244249D/M244210/M244210D 235 293 4 1.5 2.5 0.33 2.03 3.02 1.98 60.2
CRO-4606 262 332 6.5 3.3 3.3 0.32 2.12 3.15 2.07 117.9
EE700090D/700167/700168D 263 381 3 6.4 3.5 0.33 2.03 3.02 1.98 232
T-8576D/8520/8520D 250 305 5 3.3 1.5 0.41 1.66 2.47 1.62 53.6
625948A (CRO-4825) 260.5 312 6 3 2.5 0.33 2.03 3.02 1.98 70
EE127097D/127137/127137D 262 325 6.5 3.3 1.5 0.35 1.91 2.85 1.87 76.4
LM247748D/LM247710/LM247710DA 257 310 5 3.3 1.5 0.32 2.09 3.11 2.04 46.1
EE126096D/126150/126151D 262 343 6.5 3.3 4.8 0.52 1.31 1.95 1.28 132
CRO-4901 275.5 344.5 6.5 6.4 1.5 0.37 1.80 2.69 1.76 106.7
CRO-5004 275 339 5 2.5 1.5 0.33 2.03 3.02 1.98 82.1
CRO-5012 279 332.5 6 3 2 0.33 2.03 3.02 1.98 96.7
CRO-5001 276 344 6 3 3 0.26 2.55 3.80 2.49 87
T-M249748D/M249710/M249710D 272.5 335 5 2.5 2.5 0.33 2.03 3.02 1.98 85.6
EE171000D/171450/171451D 269 340 6 3.3 1.5 0.36 1.85 2.76 1.81 71.8
EE822101D/822175/822176D 289 406 8 6.4 3.3 0.34 1.98 2.94 1.93 185
CRO-5218 279 332.5 6.5 2.5 1 0.41 1.66 2.47 1.62 74.2
625952 287 338.5 6 3 3 0.33 2.03 3.02 1.98 90.3
623052 292 366.5 6.5 3 3 0.37 1.80 2.69 1.76 98.9
CRO-5215 290 359 8 6 3 0.39 1.71 2.54 1.67 106
EE134102D/134143/134144D 282 340 6.5 6.4 3.3 0.37 1.80 2.69 1.76 76.5
EE221027D/221575/221576D 292 367 8 6.4 1.5 0.39 1.71 2.54 1.67 117
HM252349D/HM252310/HM252310D 290 392 5.5 3.3 6.4 0.33 2.03 3.02 1.98 180
T-LM451349D/LM451310/LM451310D (CRO-5307) 281 335 6.5 3.3 1.5 0.36 1.87 2.79 1.83 62
CRO-5305 281 330.5 3.5 3.3 1.5 0.37 1.83 2.72 1.79 62.3
EE275106D/275155/275156D 292 367 5 6.4 3.3 0.40 1.68 2.50 1.64 116
Remarks: 1. Bearing numbers marked "" designate inch system bearings.
2.
B-185