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204 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 204. 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

204 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. 19 recorded variants are listed. A dash means the value is missing, not zero.

Measurement details

Read the original dimensions for 204

Boundary size alone does not describe every ring, shoulder or assembled unit. These tables retain the recorded manufacturer labels, symbols, units and limits for each complete marking. Expand a record to check its detailed measurements.

Important: an approximate value, a minimum or a maximum keeps that qualifier. These reference extracts are not CAD drawings, fit recommendations or replacement approvals.

TIMKEN 204KRR2 — 5 dimension fields

Deep groove ball bearing. Source: Timken official dimensional catalogue; recorded snapshot 2026-10-01.

Metric and inch measurements below are the values published together in this dated manufacturer record. Their displayed rounding is retained; the inch column does not turn a metric design into an inch-series design.

Keep the full marking shown for this record. Equal nominal dimensions do not establish matching closure, clearance, precision, material or operating limits.

This source describes a non-circular bore: the distance across flats and the minimum distance across corners are different measurements. Neither should be relabelled as a circular shaft bore. Use the matching shaft shape and the original geometry.

This factual extract is a dimensional reference, not an OEM fitment statement, a replacement approval or a downloadable CAD model.

Bearing and component measurements

MeasurementSource symbolRecorded value
A - Across FlatsNot supplied separately18 mm / 0.70 in
d - Across corners minNot supplied separately20 mm / 0.80 in
O.D. (D)D47 mm / 1.85 in
Width (B)B21 mm / 0.83 in
Outer Ring Width (C)C14 mm / 0.55 in
Open the complete TIMKEN 204KRR2 record →
Brand / full designationNamed dimensions (mm / in)Dynamic C (kN)Static C0 (kN)Reference speed (rpm)Limiting speed (rpm)Mass (kg / g)
INA204-XL-KRRDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
17.7 mm
0.69685 in
13.6 kN6.6 kN——0.11 kg110 g
INA204-XL-NPP-BSelf-aligning deep groove ball bearings
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
14 mm
0.551181 in
13.6 kN6.6 kN——0.09 kg90 g
INA204-XL-NPP-B-C3Self-aligning deep groove ball bearings
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
14 mm
0.551181 in
13.6 kN6.6 kN——0.09 kg90 g
TIMKEN204KDD6FS50000Deep groove ball bearing
Recorded bore (d)
19 mm
0.748031 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
14 mm
0.551181 in
12.8 kN6.58 kN——0.1 kg100 g
TIMKEN204KLDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
15.936 mm
0.627402 in
12.8 kN6.58 kN——0.11 kg110 g
TIMKEN204KLDDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
15.875 mm
0.625 in
12.8 kN6.58 kN——0.11 kg110 g
TIMKEN204KLL2Deep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
17.75 mm
0.698819 in
12.8 kN6.58 kN——0.11 kg110 g
TIMKEN204KLLG2Deep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
17.75 mm
0.698819 in
12.8 kN6.58 kN——0.11 kg110 g
TIMKEN204KRD4Deep groove ball bearing
Recorded bore (d)
16 mm
0.629921 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
17.501 mm
0.689016 in
12.8 kN6.58 kN——0.11 kg110 g
TIMKEN204KRR2Deep groove ball bearing
Recorded bore (d)
18 mm
0.708661 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
20.955 mm
0.825 in
12.8 kN6.58 kN——0.13 kg130 g
TIMKEN204KTDDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
16 mm
0.629921 in
12.8 kN6.58 kN——0.11 kg110 g
TIMKEN204KTTDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
21 mm
0.826772 in
12.8 kN6.58 kN——0.12 kg120 g
TIMKEN204PP4Deep groove ball bearing
Recorded bore (d)
19 mm
0.748031 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
14 mm
0.551181 in
12.8 kN6.58 kN——0.1 kg100 g
TIMKEN204PP7Deep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
17.75 mm
0.698819 in
12.8 kN6.58 kN——0.1 kg100 g
TIMKEN204PY2Deep groove ball bearing
Recorded bore (d)
16 mm
0.629921 in
Recorded outside dimension (D)
45 mm
1.771654 in
Catalogue width (symbol unverified)
18.669 mm
0.735 in
12.8 kN6.58 kN——0.12 kg120 g
TIMKEN204PY3Deep groove ball bearing
Recorded bore (d)
16 mm
0.629921 in
Recorded outside dimension (D)
45 mm
1.771654 in
Catalogue width (symbol unverified)
18.669 mm
0.735 in
12.8 kN6.58 kN——0.12 kg120 g
TIMKEN204RR8Deep groove ball bearing
Recorded bore (d)
16 mm
0.629921 in
Recorded outside dimension (D)
45 mm
1.771654 in
Catalogue width (symbol unverified)
16 mm
0.629921 in
12.8 kN6.58 kN——0.12 kg120 g
TIMKEN204WDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
14 mm
0.551181 in
15.8 kN9.05 kN——0.11 kg110 g
TIMKEN204WDDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
47 mm
1.850394 in
Catalogue width (symbol unverified)
14 mm
0.551181 in
18.5 kN10.5 kN——0.11 kg110 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
INA 204-XL-KRRNot recordedNot recordedNot recordedNot recordedNot recordedNot recorded
INA 204-XL-NPP-BNot recordedNot recordedNot recordedNot recordedNot recordedNot recorded
INA 204-XL-NPP-B-C3Not recordedNot recordedNot recordedNot recordedNot recordedNot recorded
TIMKEN 204KDD6FS50000ShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KLSealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KLDShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KLL2SealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KLLG2SealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KRD4ShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KRR2SealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KTDShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204KTTSealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204PP4SealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204PP7SealedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204PY2SealedNot recordedNot recordedNylon cageNot recordedNot recorded
TIMKEN 204PY3SealedNot recordedNot recordedNylon cageNot recordedNot recorded
TIMKEN 204RR8SealedNot recordedNot recordedNylon cageNot recordedNot recorded
TIMKEN 204WOpenNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 204WDShieldedNot recordedNot recordedSteel cageNot 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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