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 NN 3000Double row cylindrical roller bearings, medium series NN 3000. Dimensions in millimetres.
Bearing number and equivalentsDimensions (mm)
SKFGPZ (USSR)FAGRIVBore dO.D. DWidth B
NN 3002 k3182102NN 3002 kNN 3002 k153213
NN 3003 k3182103NN 3003 kNN 3003 k173614
NN 3004 k3182104NN 3004 kNN 3004 k204216
NN 3005 k3182105NN 3005 kNN 3005 k254716
NN 3006 k3182106NN 3026 kNN 3006 k305519
NN 3007 k3182107NN 3007 kNN 3007 k356220
NN 3008 k3182108NN 3008 kNN 3008 k406821
NN 3009 k3182109NN 3009 kNN 3009 k457523
NN 3010 k3182110NN 3010 kNN 3010 k508023
NN 3011 k3182111NN 3011 kNN 3011 k559026
NN 3012 k3182112NN 3012 kNN 3012 k609526
NN 3013 k3182113NN 3013 kNN 3013 k6510026
NN 3014 k3182114NN 3014 kNN 3014 k7011030
NN 3015 k3182115NN 3015 kNN 3015 k7511530
NN 3016 k3182116NN 3016 kNN 3016 k8012534
NN 3017 k3182117NN 3017 kNN 3017 k8513034
NN 3018 k3182118NN 3018 kNN 3018 k9014037
NN 3019 k3182119NN 3019 kNN 3019 k9514537
NN 3020 k3182120NN 3020 kNN 3020 k10015037
NN 3021 k3182121NN 3021 kNN 3021 k10516041
NN 3022 k3182122NN 3022 kNN 3022 k11017045
NN 3024 k3182124NN 3024 kNN 3024 k12018046
NN 3026 k3182126NN 3026 kNN 3026 k13020052
NN 3028 k3182128NN 3028 kNN 3028 k14021053
NN 3030 k3182130NN 3030 kNN 3030 k15022556
NN 3032 k3182132NN 3032 kNN 3032 k16024060
NN 3034 k3182134NN 3034 kNN 3034 k17026067
NN 3036 k3182136NN 3036 kNN 3036 k18028074
NN 3038 k3182138NN 3038 kNN 3038 k19029075
NN 3040 k3182140NN 3040 kNN 3040 k20031082
NN 3044 k3182144NN 3044 kNN 3044 k22034090

Source: Western Bearing House product guide, page 54.

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