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NJ2320 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with NJ2320. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

On this page5 sections

Find by measured dimensions

Enter bore d, outside diameter D and width B. Use decimals or inch fractions such as 1/2 or 1 1/4.

For tapered assemblies use total width T; for units or flanged bearings also check the mounting drawing.

Exact model evidence

NJ2320 dimensions and recorded technical data

The recorded NJ2320 base designation measures 100×215×73 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from KOYO. It does not assign the same dimensions or operating ratings to every suffix.

The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 33 recorded variants are listed. A dash means the value is missing, not zero.

Exact designation reference

Catalogue parameters for NJ2320

Choose the complete brand and marking before reading a value. These source-labelled records add dimensions, construction and engineering properties where they were recorded; a shared model number does not establish interchangeability.

Units, ranges and minimum/maximum qualifiers are retained. The data is a dated catalogue reference, not a certified drawing, a complete current specification or an operating approval.

KOYO NJ2320
KOYO NJ2320 — 26 recorded parameters

Cylindrical roller bearing

Reference: JTEKT / Koyo catalogue; source snapshot 2026-09-02.

Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.

Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.

Technical Data

ParameterSource symbolRecorded value
dNot separately recorded100 mm
DNot separately recorded215 mm
BNot separately recorded73 mm
R(Min.)Not separately recorded3 mm
R1(Min.)Not separately recorded3 mm
FwNot separately recorded129.5 mm
EwNot separately recorded- mm
Basic Load Ratings : CrNot separately recorded544 kN
Basic Load Ratings : C0RNot separately recorded548 kN
Fatigue Load Limit : CuNot separately recorded74.1 kN
Limiting Speeds(Grease Lub.)Not separately recorded2500 min-1
Limiting Speeds(Oil Lub.)Not separately recorded3700 min-1
Sd1Not separately recorded- mm
B1Not separately recorded- mm
B2Not separately recorded- mm
Da(Min.)Not separately recorded- mm
Db(Min.)Not separately recorded113 mm
Db(Max.)Not separately recorded125 mm
Dc(Min.)Not separately recorded- mm
Dd(Min.)Not separately recorded- mm
Da(Max.)Not separately recorded202 mm
Db(Max.)Not separately recorded- mm
Db(Min.)Not separately recorded- mm
Ra(Max.)Not separately recorded2.5 mm
Rb(Max.)Not separately recorded2.5 mm
Mass(Refer.)Not separately recorded12.2 kg
Open KOYO NJ2320 product record →
Clearance tables →Precision classes →Load calculations →Interchange checks →
Brand / full designationNamed dimensions (mm / in)Dynamic C (kN)Static C0 (kN)Reference speed (rpm)Limiting speed (rpm)Mass (kg / g)
KOYONJ2320Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
544 kN548 kN—2500 rpmLimiting Speeds(Grease Lub.): 2500 min-1Limiting Speeds(Oil Lub.): 3700 min-112.2 kg12200 g
SKFNJ 2320 ECJSingle row cylindrical roller bearing, NJ design
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
670 kN735 kN3200 rpm3800 rpm12.1 kg12100 g
SKFNJ 2320 ECJ/C3Single row cylindrical roller bearing, NJ design
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
670 kN735 kN3200 rpm3800 rpm12.1 kg12100 g
SKFNJ 2320 ECMLSingle row cylindrical roller bearing, NJ design
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
670 kN735 kN3200 rpm6000 rpm13.3 kg13300 g
SKFNJ 2320 ECML/C3Single row cylindrical roller bearing, NJ design
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
670 kN735 kN3200 rpm6000 rpm13.3 kg13300 g
SKFNJ 2320 ECML/C4Single row cylindrical roller bearing, NJ design
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
670 kN735 kN3200 rpm6000 rpm13.3 kg13300 g
SKFNJ 2320 ECPSingle row cylindrical roller bearing, NJ design
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
670 kN735 kN3200 rpm3800 rpm12.2 kg12200 g
SKFNJ 2320 ECP/C3Single row cylindrical roller bearing, NJ design
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
670 kN735 kN3200 rpm3800 rpm12.2 kg12200 g
FAGNJ2320-E-XL-M1Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
680 kN720 kN2500 rpm5600 rpm13.5 kg13500 g
FAGNJ2320-E-XL-M1ACylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
680 kN720 kN2500 rpm5600 rpm13.47 kg13470 g
FAGNJ2320-E-XL-MPAX-C3Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
680 kN720 kN2550 rpm4850 rpm13.28 kg13280 g
FAGNJ2320-E-XL-MPAX-C4Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
680 kN720 kN2550 rpm4850 rpm13.28 kg13280 g
FAGNJ2320-E-XL-MPAX-C5Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
680 kN720 kN2550 rpm4850 rpm13.28 kg13280 g
FAGNJ2320-E-XL-MPAX-ILRCylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.4 kg13400 g
FAGNJ2320-E-XL-MPAX-ILR-C3Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.5 kg13500 g
FAGNJ2320-E-XL-MPAX-ILR-C4Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.32 kg13320 g
FAGNJ2320-E-XL-MPAX-ILR-C5Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.4 kg13400 g
FAGNJ2320-E-XL-MPAX-ILR-J30PCCylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.4 kg13400 g
FAGNJ2320-E-XL-MPAX-ILR-J30PC-C3Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.4 kg13400 g
FAGNJ2320-E-XL-MPAX-QP51-ILR-C4Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
840 kN720 kN2500 rpm5600 rpm13.5 kg13500 g
FAGNJ2320-E-XL-TVP2Cylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
680 kN720 kN2500 rpm4250 rpm11.96 kg11960 g
INANJ2320-E-XL-MPAX-C4HCylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
680 kN720 kN2550 rpm4850 rpm13.28 kg13280 g
TIMKENNJ2320EJCylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
658 kN737 kN——12.2 kg12200 g
TIMKENNJ2320EJC3Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
658 kN737 kN——12.2 kg12200 g
TIMKENNJ2320EJC4Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
658 kN737 kN——12.2 kg12200 g
TIMKENNJ2320EJC5Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
658 kN737 kN——12.2 kg12200 g
TIMKENNJ2320EMACylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
710 kN737 kN——13.7 kg13700 g
TIMKENNJ2320EMAC3Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
710 kN737 kN——13.7 kg13700 g
TIMKENNJ2320EMAC4Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
710 kN737 kN——13.7 kg13700 g
TIMKENNJ2320EMAC5Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
710 kN737 kN——13.7 kg13700 g
TIMKENNJ2320EMAW999C3Cylindrical roller bearing
Recorded bore (d)
100 mm
3.937008 in
Recorded outside dimension (D)
215 mm
8.464567 in
Catalogue width (symbol unverified)
73 mm
2.874016 in
658 kN737 kN——13.4 kg13400 g
NSKNJ2320ETCylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Bearing width (B)
73 mm
2.874016 in
700 kN715 kN———
KOYONJ2320RCylindrical roller bearing
Bore diameter (d)
100 mm
3.937008 in
Outside diameter (D)
215 mm
8.464567 in
Width (B)
73 mm
2.874016 in
713 kN717 kN—2400 rpmLimiting Speeds(Grease Lub.): 2400 min-1Limiting Speeds(Oil Lub.): 3600 min-112.4 kg12400 g
Compare recorded seals, clearance, precision and materials

Manufacturer wording is retained. A missing property is not inferred from another brand or a similar suffix.

Brand / designationClosureOriginal precisionClearanceCageMaterialLubricant
KOYO NJ2320Not recordedNot recordedNot recordedNot recordedNot recordedNot recorded
SKF NJ 2320 ECJWithoutNot recordedCNSheet metalNot recordedNone
SKF NJ 2320 ECJ/C3WithoutNot recordedC3Sheet metalNot recordedNone
SKF NJ 2320 ECMLWithoutNot recordedCNMachined brassNot recordedNone
SKF NJ 2320 ECML/C3WithoutNot recordedC3Machined brassNot recordedNone
SKF NJ 2320 ECML/C4WithoutNot recordedC4Machined brassNot recordedNone
SKF NJ 2320 ECPWithoutNot recordedCNNon-metallicNot recordedNone
SKF NJ 2320 ECP/C3WithoutNot recordedC3Non-metallicNot recordedNone
FAG NJ2320-E-XL-M1Not recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceM1 — Two Piece Brass Cage Roller GuidedNot recordedNot recorded
FAG NJ2320-E-XL-M1ANot recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceM1A — Two Piece Brass Cage Lip guidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-C3Not recordedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNMPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-C4Not recordedPN — Normal (ISO 492:2023)C4 (Group 4) — Internal clearance larger than C3MPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-C5Not recordedPN — Normal (ISO 492:2023)C5 (Group 5) — Internal clearance larger than C4MPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-ILRNot recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceMPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-ILR-C3Not recordedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNMPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-ILR-C4Not recordedPN — Normal (ISO 492:2023)C4 (Group 4) — Internal clearance larger than C3MPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-ILR-C5Not recordedPN — Normal (ISO 492:2023)C5 (Group 5) — Internal clearance larger than C4MPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-ILR-J30PCNot recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceMPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-ILR-J30PC-C3Not recordedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNMPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-MPAX-QP51-ILR-C4Not recordedPN — Normal (ISO 492:2023)C4 (Group 4) — Internal clearance larger than C3MPAX — One Piece Brass Cage Lip GuidedNot recordedNot recorded
FAG NJ2320-E-XL-TVP2Not recordedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceTVP2 — Solid Window Cage made from PA66Not recordedNot recorded
INA NJ2320-E-XL-MPAX-C4HNot recordedNot recordedNot recordedNot recordedNot recordedNot recorded
TIMKEN NJ2320EJOpenNot recordedNot recordedWindow Steel cageNot recordedNot recorded
TIMKEN NJ2320EJC3OpenNot recordedNot recordedWindow Steel cageNot recordedNot recorded
TIMKEN NJ2320EJC4OpenNot recordedNot recordedWindow Steel cageNot recordedNot recorded
TIMKEN NJ2320EJC5OpenNot recordedNot recordedWindow Steel cageNot recordedNot recorded
TIMKEN NJ2320EMAOpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
TIMKEN NJ2320EMAC3OpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
TIMKEN NJ2320EMAC4OpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
TIMKEN NJ2320EMAC5OpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
TIMKEN NJ2320EMAW999C3OpenNot recordedNot recordedWindow Brass cageNot recordedNot recorded
NSK NJ2320ETNot recordedNot recordedNot recordedPolyamide 66Not recordedNot recorded
KOYO NJ2320RNot recordedNot recordedNot recordedNot recordedNot recordedNot recorded

How to compare these values

  • Use the displayed dimension names and original symbols. Housing length L, height H2 and flange width are not bearing outside diameter D. A catalogue width with an unverified symbol must not be assumed to be inner-ring width B or assembly width T. Open the product record for mounting dimensions and geometry.
  • Inch values are calculated from the recorded millimetres using 25.4 mm per inch, rounded to six decimal places. They do not change a metric bearing into an inch-series bearing. Gram values are converted from the recorded mass in kilograms.
  • C and C0 describe different rating conditions. They are not a single safe working-load limit and cannot replace an application load calculation.
  • Reference and limiting speeds are separate catalogue values. The source grease/oil context is shown where recorded. Lubricant, seals, loads, fit, clearance and cooling affect the usable operating speed.
  • A common base number does not prove equivalent seals, clearance, precision, material or interchangeability. Open the full designation for these fields.
Check load calculations →Estimate rating life →Decode the complete marking →Check replacement evidence →

Related prefix matches — other model numbers may appear

These discovery results can contain a longer number or a different component. They are not specifications for the requested exact model. Open the complete product to inspect its original geometry.

KOYO

NJ2320

Cylindrical roller bearing

View full technical record →SKF

NJ 2320 ECJ

Single row cylindrical roller bearing, NJ design

View full technical record →SKF

NJ 2320 ECJ/C3

Single row cylindrical roller bearing, NJ design

View full technical record →SKF

NJ 2320 ECML

Single row cylindrical roller bearing, NJ design

View full technical record →SKF

NJ 2320 ECML/C3

Single row cylindrical roller bearing, NJ design

View full technical record →SKF

NJ 2320 ECML/C4

Single row cylindrical roller bearing, NJ design

View full technical record →SKF

NJ 2320 ECP

Single row cylindrical roller bearing, NJ design

View full technical record →SKF

NJ 2320 ECP/C3

Single row cylindrical roller bearing, NJ design

View full technical record →TIMKEN

NJ2320EJ

Cylindrical roller bearing

View full technical record →TIMKEN

NJ2320EJC3

Cylindrical roller bearing

View full technical record →TIMKEN

NJ2320EJC4

Cylindrical roller bearing

View full technical record →TIMKEN

NJ2320EJC5

Cylindrical roller bearing

View full technical record →
Filter all 33 prefix results →

Check the drawing before substituting

Nominal dimensions are not shaft-fit tolerances. Different variants can add grooves, flanges, wider rings or assembly components. When the table has different dimensions, the complete designation—not the shared prefix—controls.

Measurement guide →Cross-reference checks →

Reference basis & data limits

Manufacturer terminology is retained in the product records. Technical reference basis: JTEKT Basic Bearing Knowledge (boundary dimensions, tolerance classes and lubrication); NSK Bearing ABCs (lubrication, designations and clearance); NTN technical FAQs (closure codes and component interchange); SKF rolling-bearing selection and maintenance references.

Selection workflows and catalogue grouping are BearingScope editorial aids. Verify the current drawing and application requirements before using a candidate. Missing database information is not converted into an assumed match.

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