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2309 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 2309. 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

2309 dimensions and recorded technical data

The recorded 2309 base designation measures 45×100×36 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from NSK, 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. 19 recorded variants are listed. A dash means the value is missing, not zero.

Brand / full designationNamed dimensions (mm / in)Dynamic C (kN)Static C0 (kN)Reference speed (rpm)Limiting speed (rpm)Mass (kg / g)
NSK2309Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Bearing width (B)
36 mm
1.417323 in
60.5 kN16.7 kN——1.3 kg1300 g
KOYO2309Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
68 kN16.6 kN—5600 rpmLimiting Speeds(Grease Lub.): 5600 min-1Limiting Speeds(Oil Lub.): 7700 min-11.23 kg1230 g
SKF2309 E-2RS1KTN9Self-aligning ball bearing with tapered bore and seals on both sides
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
39 kN13.4 kN12000 rpm4300 rpm1.25 kg1250 g
SKF2309 E-2RS1TN9Self-aligning ball bearing with seals on both sides
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
39 kN13.4 kN12000 rpm4300 rpm1.23 kg1230 g
SKF2309 EKTN9Self-aligning ball bearing with tapered bore
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
63.7 kN19.3 kN13000 rpm9000 rpm1.17 kg1170 g
SKF2309 EKTN9/C3Self-aligning ball bearing with tapered bore
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
36 mm
1.417323 in
63.7 kN19.3 kN13000 rpm9000 rpm1.16 kg1160 g
SKF2309 EMSelf-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
63.7 kN19.3 kN13000 rpm9000 rpm1.31 kg1310 g
SKF2309 EM/C3Self-aligning ball bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
36 mm
1.417323 in
63.7 kN19.3 kN13000 rpm9000 rpm1.33 kg1330 g
SKF2309 ETN9Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
63.7 kN19.3 kN13000 rpm9000 rpm1.21 kg1210 g
SKF2309 ETN9/C3Self-aligning ball bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
36 mm
1.417323 in
63.7 kN19.3 kN13000 rpm9000 rpm1.2 kg1200 g
SKF2309 M/VQ335Self-aligning ball bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
36 mm
1.417323 in
54 kN16.6 kN13000 rpm9000 rpm1.37 kg1370 g
FAG2309-2RS-TVHSelf-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
38.5 kN12.7 kN—4550 rpm1.299 kg1299 g
FAG2309-K-2RS-TVH-C3Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
38.5 kN12.7 kN—4550 rpm1.2 kg1200 g
FAG2309-K-TVH-C3Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
55 kN16.6 kN8000 rpm7000 rpm1.176 kg1176 g
FAG2309-MSelf-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
55 kN16.6 kN8000 rpm10500 rpm1.38 kg1380 g
FAG2309-M-C3Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
55 kN16.6 kN8000 rpm10500 rpm1.35 kg1350 g
FAG2309-TVHSelf-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
55 kN16.6 kN8000 rpm7000 rpm1.209 kg1209 g
FAG2309-TVH-C3Self-aligning ball bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
36 mm
1.417323 in
55 kN16.6 kN8000 rpm7000 rpm1.21 kg1210 g
NSK2309KSelf-aligning ball bearing
Nominal bore diameter (1:12 taper) (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Bearing width (B)
36 mm
1.417323 in
60.5 kN16.7 kN———
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
NSK 2309Not recordedNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 2309OpenNot recordedNot recordedNot recordedNot recordedNot recorded
SKF 2309 E-2RS1KTN9Seal on both sidesNot recordedCNNon-metallicBearing steelGrease
SKF 2309 E-2RS1TN9Seal on both sidesNot recordedCNNon-metallicBearing steelGrease
SKF 2309 EKTN9WithoutNot recordedCNNon-metallicBearing steelNone
SKF 2309 EKTN9/C3WithoutNot recordedC3Non-metallicBearing steelNone
SKF 2309 EMWithoutNot recordedCNMachined brassBearing steelNone
SKF 2309 EM/C3WithoutNot recordedC3Machined brassBearing steelNone
SKF 2309 ETN9WithoutNot recordedCNNon-metallicBearing steelNone
SKF 2309 ETN9/C3WithoutNot recordedC3Non-metallicBearing steelNone
SKF 2309 M/VQ335WithoutNot recordedCNMachined brassBearing steelNone
FAG 2309-2RS-TVH2RS — Contact seal on both sidesPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedGA13 — Ball bearing and insert bearing grease
FAG 2309-K-2RS-TVH-C32RS — Contact seal on both sidesPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedGA13 — Ball bearing and insert bearing grease
FAG 2309-K-TVH-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedWithout — Bearing not greased
FAG 2309-MWithout — Not sealedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceM — Solid brass cage, ball guidedNot recordedWithout — Bearing not greased
FAG 2309-M-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNM — Solid brass cage, ball guidedNot recordedWithout — Bearing not greased
FAG 2309-TVHWithout — Not sealedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedWithout — Bearing not greased
FAG 2309-TVH-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedWithout — Bearing not greased
NSK 2309KNot 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

2309

Self-aligning ball bearing

View full technical record →NSK

2309

Self-aligning ball bearing

View full technical record →FAG

230/900-B-K-MB

Spherical Roller Bearing

View full technical record →SKF

230/900 CAK/W33

Spherical roller bearing with tapered bore and relubrication features

View full technical record →NSK

230/900CAME4

Spherical roller bearing

View full technical record →NSK

230/900CAMKE4

Spherical roller bearing

View full technical record →SKF

230/900 CA/W33

Spherical roller bearing with relubrication features

View full technical record →TIMKEN

23092 / 23250X

Tapered roller bearing

View full technical record →TIMKEN

23092 / 23256

Tapered roller bearing

View full technical record →TIMKEN

23092 / 23256B

Tapered roller bearing

View full technical record →TIMKEN

23092-90010

Tapered roller bearing

View full technical record →FAG

23092-BEA-XL-K-MB1

Spherical Roller Bearing

View full technical record →
Filter all 109 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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