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21309 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 21309. 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

21309 dimensions and recorded technical data

Use the named dimensions for each complete record below. A generic d×D×B answer is not asserted where the base record is missing, dimension symbols are unverified, or the product uses a different geometry such as a housing or thrust assembly. Suffix records are not substituted for a missing base specification.

The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 24 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)
SKF21309 ESpherical roller bearing with relubrication features
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN127 kN6300 rpm8500 rpm0.969 kg969 g
SKF21309 E/C3Spherical roller bearing with relubrication features
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
129 kN127 kN6300 rpm8500 rpm0.958 kg958 g
SKF21309 EKSpherical roller bearing with tapered bore and relubrication features
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN127 kN6300 rpm8500 rpm0.956 kg956 g
SKF21309 EK/C3Spherical roller bearing with tapered bore and relubrication features
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
129 kN127 kN6300 rpm8500 rpm0.956 kg956 g
FAG21309-E1-XLSpherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.973 kg973 g
FAG21309-E1-XL-C3Spherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.973 kg973 g
FAG21309-E1-XL-KSpherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.96 kg960 g
FAG21309-E1-XL-K-C3Spherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.96 kg960 g
FAG21309-E1-XL-K-TVPBSpherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.902 kg902 g
FAG21309-E1-XL-K-TVPB-C3Spherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.902 kg902 g
FAG21309-E1-XL-TVPBSpherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.914 kg914 g
FAG21309-E1-XL-TVPB-C3Spherical Roller Bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
129 kN130 kN4750 rpm9000 rpm0.914 kg914 g
TIMKEN21309EJW33Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.94 kg940 g
TIMKEN21309EJW33C2Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.94 kg940 g
TIMKEN21309EJW33C3Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.94 kg940 g
TIMKEN21309EJW33C4Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.94 kg940 g
TIMKEN21309EJW841Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.95 kg950 g
TIMKEN21309KEJW33Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.92 kg920 g
TIMKEN21309KEJW33C3Spherical roller bearing
Recorded bore (d)
45 mm
1.771654 in
Recorded outside dimension (D)
100 mm
3.937008 in
Catalogue width (symbol unverified)
25 mm
0.984252 in
140 kN125 kN——0.92 kg920 g
NSK21309EAE4Spherical roller bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Bearing width (B)
25 mm
0.984252 in
149 kN144 kN——0.96 kg960 g
NSK21309EAKE4Spherical roller bearing
Nominal bore diameter (1:12 taper) (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Bearing width (B)
25 mm
0.984252 in
149 kN144 kN———
KOYO21309RZSpherical roller bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
132 kN124 kN—5000 rpmLimiting Speeds(Grease Lub.): 5000 min-1Limiting Speeds(Oil Lub.): 6700 min-11.05 kg1050 g
KOYO21309RZK+AH309Spherical roller bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
132 kN124 kN—5000 rpmLimiting Speeds(Grease Lub.): 5000 min-1Limiting Speeds(Oil Lub.): 6700 min-11.14 kg1140 g
KOYO21309RZK+H309XSpherical roller bearing
Bore diameter (d)
45 mm
1.771654 in
Outside diameter (D)
100 mm
3.937008 in
Width (B)
25 mm
0.984252 in
132 kN124 kN—5000 rpmLimiting Speeds(Grease Lub.): 5000 min-1Limiting Speeds(Oil Lub.): 6700 min-11.31 kg1310 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
SKF 21309 EWithoutNormalCNSheet metalNot recordedNone
SKF 21309 E/C3WithoutNot recordedC3Sheet metalNot recordedNone
SKF 21309 EKWithoutNormalCNSheet metalNot recordedNone
SKF 21309 EK/C3WithoutNot recordedC3Sheet metalNot recordedNone
FAG 21309-E1-XLNot recordedNot recordedCN (Group N) — Normal internal clearanceJPA — Sheet metal cageNot recordedNot recorded
FAG 21309-E1-XL-C3Not recordedNot recordedC3 (Group 3) — Internal clearance larger than CNJPA — Sheet metal cageNot recordedNot recorded
FAG 21309-E1-XL-KNot recordedNot recordedCN (Group N) — Normal internal clearanceJPA — Sheet metal cageNot recordedNot recorded
FAG 21309-E1-XL-K-C3Not recordedNot recordedC3 (Group 3) — Internal clearance larger than CNJPA — Sheet metal cageNot recordedNot recorded
FAG 21309-E1-XL-K-TVPBNot recordedNot recordedCN (Group N) — Normal internal clearanceTVPB — Plastic cageNot recordedNot recorded
FAG 21309-E1-XL-K-TVPB-C3Not recordedNot recordedC3 (Group 3) — Internal clearance larger than CNTVPB — Plastic cageNot recordedNot recorded
FAG 21309-E1-XL-TVPBNot recordedNot recordedCN (Group N) — Normal internal clearanceTVPB — Plastic cageNot recordedNot recorded
FAG 21309-E1-XL-TVPB-C3Not recordedNot recordedC3 (Group 3) — Internal clearance larger than CNTVPB — Plastic cageNot recordedNot recorded
TIMKEN 21309EJW33OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 21309EJW33C2OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 21309EJW33C3OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 21309EJW33C4OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 21309EJW841OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 21309KEJW33OpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 21309KEJW33C3OpenNot recordedNot recordedSteel cageNot recordedNot recorded
NSK 21309EAE4Not recordedNot recordedCNPressed steelNot recordedNot recorded
NSK 21309EAKE4Not recordedNot recordedCNPressed steelNot recordedNot recorded
KOYO 21309RZNot recordedNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 21309RZK+AH309Not recordedNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 21309RZK+H309XNot 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.

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.

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.

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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