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48290 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 48290. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

On this page6 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.

Manufacturer component reference

TIMKEN 48290 — individual cone dimensions

TIMKEN 48290 is an individual tapered-roller cone: the inner ring, rollers and cage, not the complete cone-and-cup bearing. The manufacturer lists bore d = 127 mm (5 in) and inner-ring width B = 38.100 mm (1.5000 in).

Nominal dimensions · published units retained
MeasurementSymbolMetricInches
Bore (d)d127 mm5 in
Inner Ring Width (B)B38.100 mm1.5000 in
Effective Center LocationNot specified-5.6 mm-0.22 in
Shaft Backing Shoulder Diameter - Frontface (da)da135 mm5.31 in
Shaft Backing Shoulder Diameter - Backface (db)db141 mm5.55 in
Cage Location rel. to BF (Aa)Aa1.5 mm0.06 in
Cage Location rel. to FF (Ab)Ab3.8 mm0.15 in

Use the component number correctly

  • The bore identifies the shaft-side nominal opening. B measures this cone only; it is not the assembled bearing width T. This single-cone record does not establish an outside diameter D or a matching cup.
  • Preserve the full component number and its suffix. A shared prefix, similar ring size or a related-products suggestion does not approve a cone/cup combination or a cross-brand replacement.
  • For a complete bearing, check both component markings and the manufacturer’s assembled d×D×T record. B+C is not a valid way to calculate T. A seal, axle rating, vehicle application and tightening procedure need their own evidence.
  • Optional measurements with inconsistent printed metric and inch values are omitted from this supplement: Max Shaft Fillet Radius. Verify the manufacturer drawing before using these particular limits.

Factual reference: Timken official individual-component catalogue; source snapshot 2026-10-02. Original interpretation by BearingScope. These measurements do not certify a complete assembly, fit or interchange.

Exact model evidence

48290 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. 26 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)
SKF48290/48220Single row tapered roller bearing
Bore diameter (d)
127 mm
5 in
Outside diameter (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
—
281 kN440 kN2600 rpm3200 rpm3.28 kg3280 g
SKF48290/48220/QSingle row tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
—
229 kN440 kN2400 rpm3200 rpm3.28 kg3280 g
SKF48290/QSingle row tapered roller bearing, cone
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
—
Catalogue width (symbol unverified)
—
229 kN440 kN——2.17 kg2170 g
TIMKEN48290 / 48220Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
39.688 mm
1.56252 in
268 kN493 kN——3.28 kg3280 g
TIMKEN48290-90022Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
39.688 mm
1.56252 in
268 kN493 kN——3.28 kg3280 g
TIMKEN48290-90028Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90030Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90033Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90034Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90062Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90063Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90085Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90086Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90087Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90128Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90140Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-90147Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-902C9Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——7.11 kg7110 g
TIMKEN48290-902D1Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——6.91 kg6910 g
TIMKEN48290-99301Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
39.688 mm
1.56252 in
268 kN493 kN——3.28 kg3280 g
TIMKEN48290-99410Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——6.93 kg6930 g
TIMKEN48290-99411Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
12.7 mm
0.5 in
268 kN493 kN——3.44 kg3440 g
TIMKEN48290-99415Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
85.725 mm
3.375 in
466 kN987 kN——6.93 kg6930 g
TIMKEN48290DW-903A1Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
76.2 mm
3 in
466 kN987 kN——6.69 kg6690 g
TIMKEN48290DW-99401Tapered roller bearing
Recorded bore (d)
127 mm
5 in
Recorded outside dimension (D)
182.562 mm
7.18748 in
Catalogue width (symbol unverified)
76.2 mm
3 in
466 kN987 kN——6.48 kg6480 g
KOYO48290D/20/20DRolling mill roll neck bearings
Bore diameter (d)
127 mm
5 in
Outside diameter (D)
182.563 mm
7.18752 in
Total width / height (T)
158.75 mm
6.25 in
835 kN1720 kN——13.6 kg13600 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 48290/48220WithoutNot recordedNot recordedSheet metalNot recordedNone
SKF 48290/48220/QWithoutNot recordedNot recordedSheet metalNot recordedNone
SKF 48290/QWithoutNot recordedNot recordedSheet metalNot recordedNone
TIMKEN 48290 / 48220OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90022OpenABMA Class 0Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90028OpenABMA Class 3Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90030OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90033OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90034OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90062OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90063OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90085OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90086OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90087OpenABMA Class 3Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90128OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90140OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-90147OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-902C9OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-902D1OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-99301OpenABMA Class 3Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-99410OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-99411OpenABMA Class 3Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290-99415OpenABMA Class 2Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290DW-903A1OpenABMA Class 3Not recordedSteel cageNot recordedNot recorded
TIMKEN 48290DW-99401OpenABMA Class 4Not recordedSteel cageNot recordedNot recorded
KOYO 48290D/20/20DNot 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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