Jodhpur, Rajasthan, India Download catalog
Western Bearing HousePrecision bearings, Jodhpur, India
Cylindrical roller bearings
Overview

Cylindrical roller bearings from Western Bearing House

Cylindrical roller bearings use rollers in line contact with the raceways, which gives very high radial load capacity and stiffness. N, NU and NJ designs allow the shaft to move axially or locate it in one direction, and NN double row bearings suit high-stiffness applications.

Series
16
Catalogued sizes
521
Bore range
10–381 mm
O.D. up to
580 mm

Typical applications

Traction motorsVibrating screensCrushing unitsRolling millsAxle boxes

Engineering features

  • N, NU and NJ single row designs
  • NN double row for high stiffness
  • Crowned rollers against edge loading
  • Heavy-duty riveted brass cages
  • Hardness, dimensional and vibration tested
  • AISI 52100 / 100Cr6 steel, 60–64 HRC

Technical specifications

Construction, standards and dimension range for cylindrical roller bearings. Dimensions are converted to millimetres for inch series.

Cylindrical roller bearingsTechnical specification
Bearing typeCylindrical roller bearings
Designs and seriesN, NU and NJ single row; NN double row; inch RXLS
Catalogued sizes521 sizes in 16 series
Bore range (d)10–381 mm
Outside diameter (D)30–580 mm
Width range (B)9–175 mm
Measurement systemMetric and inch
MaterialHigh-carbon chromium bearing steel, AISI 52100 / 100Cr6
HardnessThrough-hardened, 60–64 HRC
Precision classISO 492 / DIN 620 Normal (P0), P6 and P5
Radial clearanceC2, Normal, C3 and C4
CageHeavy-duty riveted brass
Bore typeCylindrical, or tapered (NN 3000 K)
Quality testingHardness, dimensional, runout and vibration testing of every bearing
PackingAnti-corrosive VCI export wrapping
Typical applicationsTraction motors, Vibrating screens, Crushing units, Rolling mills, Axle boxes

Series overview

Every catalog series in this family. Select a series to open its full size and interchange table below.

SeriesCylindrical roller bearings: 16 series
SeriesDescriptionSystemSizesBore (d)O.D. (D)Width (B)Catalog page
Cylindrical roller bearings
Extra light series RXLS
Inch361.5–15 in2.7–20 in0.6–2.5 in40
Cylindrical roller bearings
Light series N 200
Metric3310–220 mm30–400 mm9–65 mm41
Cylindrical roller bearings
Light series NU 200
Metric3810–320 mm30–580 mm9–92 mm42
Cylindrical roller bearings
Light series NJ 200
Metric3810–320 mm30–580 mm9–92 mm43
Cylindrical roller bearings
Light series N 300
Metric3610–280 mm35–580 mm11–108 mm44
Cylindrical roller bearings
Medium series NU 300
Metric3610–280 mm35–580 mm11–108 mm45
Cylindrical roller bearings
Medium series NJ 300
Metric3610–280 mm35–580 mm11–108 mm46
Cylindrical roller bearings
Light / heavy series N 400
Metric2417–150 mm62–380 mm17–85 mm47
Cylindrical roller bearings
Heavy series NU 400
Metric2417–150 mm62–380 mm17–85 mm48
Cylindrical roller bearings
Heavy series NJ 400
Metric2417–150 mm62–380 mm17–85 mm49
Cylindrical roller bearings
Wide light series NU 2200
Metric3615–320 mm35–580 mm14–150 mm50
Cylindrical roller bearings
Wide light series NJ 2200
Metric3615–320 mm35–580 mm14–150 mm51
Cylindrical roller bearings
Wide light series NU 2300
Metric3415–280 mm42–580 mm17–175 mm52
Cylindrical roller bearings
Wide light series NJ 2300
Metric3415–280 mm42–580 mm17–175 mm53
Double row cylindrical roller bearings
Medium series NN 3000
Metric3115–220 mm32–340 mm13–90 mm54
Cylindrical roller bearings
Extra light series NU 1000
Metric2550–260 mm80–400 mm16–65 mm55

Size and interchange tables

Bearing numbers with their equivalents and dimensions from our catalog. Select any row for its technical drawing and full cross-reference.

Series NU 300Cylindrical roller bearings, medium series NU 300. Dimensions in millimetres.
Bearing number and equivalentsDimensions (mm)Weight (kg)
SKFRHPGPZ (USSR)FAGRIVNBC / HoffmannBore dO.D. DWidth B
–––NU 3001 DBPP–103511–
–NU 301–NU 3012 DBPPR 312 E123712–
–NU 30232302NU 3023 DBPPR 315 E154213–
–NU 303–NU 3034 DBPPR 317 E174714–
NU 304NU 304–NU 3045 DBPPR 320 E2052150.16
NU 305NU 30532305NU 3056 DBPPR 325 E2562170.25
NU 306NU 30632306NU 3067 DBPPR 330 E3072190.37
NU 307NU 30732307NU 3078 DBPPR 335 E3580210.49
NU 308NU 30832308NU 3089 DBPPR 340 E4090230.66
NU 309NU 30932309NU 30910 DBPPR 345 E45100250.89
NU 310NU 31032310NU 31011 DBPPR 350 E50110271.15
NU 311NU 31132311NU 31112 DBPPR 355 E55120291.5
NU 312NU 31232312NU 31213 DBPPR 360 E60130311.85
NU 313NU 31332313NU 31314 DBPPR 365 E65140332.3
NU 314NU 31432314NU 31415 DBPPR 370 E70150352.8
NU 315NU 31532315NU 31516 DBPPR 375 E75160373.3
NU 316NU 31632316NU 31617 DBPPR 380 E80170393.95
NU 317NU 31732317NU 31718 DBPPR 385 E85180414.65
NU 318NU 31832318NU 31819 DBPPR 390 E90190435.4
NU 319NU 31932319NU 31920 DBPPR 395 E95200456.25
NU 320NU 32032320NU 32021 DBPPR 400 E100215477.65
NU 321NU 32132321NU 32122 DBPPR 405 E105225498.5
NU 322NU 32232322NU 32223 DBPPR 410 E1102405012
NU 324NU 32432324NU 32424 DBPPR 420 E1202605515
NU 326NU 32632326NU 32625 DBPP–1302805818.5
NU 328NU 32832328NU 32826 DBPP–1403006222.5
NU 330NU 33032330NU 33027 DBPP–1503206527
NU 332NU 33232332NU 332––1603406832
NU 334NU 33432334NU 334––1703607237
NU 336NU 33632336NU 336––1803807544.2
NU 338NU 33832338NU 338––1904007849.4
NU 340NU 34032340NU 340––2004208055.8
NU 344NU 34432344NU 344––2204608873.4
NU 348NU 34832348NU 348––2405009593.4
NU 352NU 35232352NU 352––260540102117
NU 356NU 35632356NU 356––280580108142

Source: Western Bearing House product guide, page 45.

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