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Cylindrical roller bearing > Double row cylindrical roller bearings > Double column cylinder (standard) 25-850 millimeters

Double column cylinder (standard) 25-850 millimeters

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Product drawing

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drawing

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Product parameters

External dimensions（mm)Rated load(KN)Rated speed min-1Bearing codeInstallation size(mm)weight(kg)
dDBγ(minimum)FWEWCrCorgreaseoilCylindrical holeconical boreDa
(minimum）		da
(maximum）		d1a
(minimum)		dc
(minimum)		da
(maximum）		Da
(minimum）		γa
(maximum)		(refer to)
280 350 69 1.1 — 329 445 1160 — — NN 4856 — 293 — — — — 336 1 15.3
260 440 144 4 — 393 1480 2660 — — NN 3152 NN 3152 K 282 — 294 — — 415 3 89.1
260 400 140 4 300 — 1550 3250 — — NNU 4052 — 282 — — 306 — — 3 65
260 400 140 4 — 364 1550 3250 — — NN 4052 NN 4052 K 282 — 294 — — 376 3 59.7
260 400 104 4 300 — 1030 1920 — — NNU 3052 — 276 282 278 306 384 — 3 48.1
260 400 104 4 — 364 1030 1920 1400 1700 NN 3052 NN 3052 K 276 — 278 — 384 368 3 47.7
260 360 100 2.1 289 — 935 2100 1400 1800 NNU 4952 NNU 4952 K 271 288 275 295 349 — 2 31.1
260 360 100 2.1 — 335 935 2100 — — NN 4952 NN 4952 K 271 — 275 — 349 342 2 28.3
260 360 75 2.1 — 335 670 1380 — — NN 3952 NN 3952 K 277 — 283 — — 342 2 21.4
240 400 128 4 — 358 1170 2040 — — NN 3148 NN 3148 K 262 — 272 — — 376 3 64.2

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