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 N 300Cylindrical roller bearings, light series N 300. Dimensions in millimetres.
Bearing number and equivalentsDimensions (mm)Weight (kg)
SKFRHPGPZ (USSR)FAGRIVNBC / HoffmannBore dO.D. DWidth B
–MRJ 10–NM 101 DBPVR 310103511–
–MRJ 12–NM 122 DBPVR 312123712–
–MRJ 15–NM 153 DBPVR 315154213–
–MRJ 17–NM 174 DBPVR 317174714–
N 304MRJ 202304NM 205 DBPVR 3202052150.16
N 305MRJ 252305NM 256 DBPVR 3252562170.25
N 306MRJ 302306NM 307 DBPVR 3303072190.37
N 307MRJ 352307NM 358 DBPVR 3353580210.49
N 308MRJ 402308NM 409 DBPVR 3404090230.66
N 309MRJ 452309NM 4510 DBPVR 34545100250.89
N 310MRJ 502310NM 5011 DBPVR 35050110271.15
N 311MRJ 552311NM 5512 DBPVR 35555120291.5
N 312MRJ 602312NM 6013 DBPVR 36060130311.85
N 313MRJ 652313NM 6514 DBPVR 36565140332.3
N 314MRJ 702314NM 7015 DBPVR 37070150352.8
N 315MRJ 752315NM 7516 DBPVR 37575160373.3
N 316MRJ 802316NM 8017 DBPVR 38080170393.95
N 317MRJ 852317NM 8518 DBPVR 38585180414.65
N 318MRJ 902318NM 9019 DBPVR 39090190435.4
N 319MRJ 952319NM 9520 DBPVR 39595200456.25
N 320MRJ 1002320NM 10021 DBPVR 400100215477.65
N 321MRJ 1052321NM 10522 DBPVR 405105225498.5
N 322MRJ 1102322NM 11023 DBPVR 4101102405012
N 324MRJ 1202324NM 12024 DBPVR 4201202605515
N 326–2326NM 13025 DBPV–1302805818.5
N 328–2328NM 14026 DBPV–1403006222.5
N 330–2330NM 15027 DBPV–1503206527
N 332–2332–––1603406832
N 334–2334–––1703607237
N 336–2336–––1803807544.2
N 338–2338–––1904007849.4
N 340–2340–––2004208055.8
N 344–2344–––2204608873.4
N 348–2348–––2405009593.4
N 352–2352–––260540102117
N 356–2356–––280580108142

Source: Western Bearing House product guide, page 44.

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