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6004Z bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 6004Z. 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.

NSK historical dimension lookup

6004Z — source-labelled NSK dimensions

Nominal dimensions from the NSK Bearing Replacement Guide, reference BRG/C/E/11.15. This is a historical catalogue reference, checked 2026-10-03; it is not a current product-availability list or an interchange approval. Each row preserves its complete printed designation.

Single-row radial ball bearing dimensions — all values in millimetres
Complete NSK designationBore dOutside DWidth BSource page / boundary
NSK catalogue record6004Z20 mm42 mm12 mmPrinted p. 35Nominal envelope only; complete execution as marked

Read d×D×B together. Equal outside dimensions do not prove equal seals, internal clearance, precision, load ratings, lubricant or speed limits. Those properties are not supplied by this dimensional table. A DU, DDU, Z, ZZ, VV, DD or other marking is kept as printed; missing suffix records are not created from a base model.

Exact model evidence

6004Z 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. 13 recorded variants are listed. A dash means the value is missing, not zero.

Measurement details

Read the original dimensions for 6004Z

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.

SKF 6004-Z — 3 dimension fields

Deep groove ball bearing with seals or shields. Source: SKF product catalogue; recorded snapshot 2026-09-02.

The source gives named dimensions but no drawing symbol for some values. An unqualified width is not relabelled as inner-ring B or assembly T.

Use the complete designation shown here. A seal, cage, clearance or precision suffix can matter even when nominal boundary dimensions match.

Bearing and component measurements

MeasurementSource symbolRecorded value
Bore diameterNot supplied separately20.0 mm
Outside diameterNot supplied separately42.0 mm
WidthNot supplied separately12.0 mm
Open the complete SKF 6004-Z record →
TIMKEN 6004-Z — 4 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.

Shaft and housing backing-shoulder dimensions, maximum fillet radii and signed offsets answer different installation questions. Preserve the named face, limit and sign; they are not additional bearing outside diameters or nominal widths.

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
Bore (d)d20 mm
O.D. (D)D42 mm / 1.654 in
Width (B)B12 mm / 0.472 in

Mounting limits and abutments

MeasurementSource symbolRecorded value
Max Shaft Fillet RadiusNot supplied separately0.6 mm / 0.024 in
Open the complete TIMKEN 6004-Z record →
Brand / full designationNamed dimensions (mm / in)Dynamic C (kN)Static C0 (kN)Reference speed (rpm)Limiting speed (rpm)Mass (kg / g)
SKF6004-ZDeep groove ball bearing with seals or shields
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.95 kN5 kN38000 rpm24000 rpm0.0671 kg67.1 g
TIMKEN6004-ZDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.38 kN5.03 kN——0.07 kg70 g
SKF6004-Z/C3Deep groove ball bearing with seals or shields
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.95 kN5 kN38000 rpm24000 rpm0.0671 kg67.1 g
SKF6004 ZJEMDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.95 kN5 kN38000 rpm24000 rpm0.069 kg69 g
TIMKEN6004-Z-C3Deep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.38 kN5.03 kN——0.07 kg70 g
TIMKEN6004-Z-NR-C3Deep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.38 kN5.03 kN——0.07 kg70 g
TIMKEN6004-ZZDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.38 kN5.03 kN——0.07 kg70 g
TIMKEN6004-ZZ-C3Deep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.38 kN5.03 kN——0.07 kg70 g
TIMKEN6004-ZZ-NRDeep groove ball bearing
Recorded bore (d)
20 mm
0.787402 in
Recorded outside dimension (D)
42 mm
1.653543 in
Catalogue width (symbol unverified)
12 mm
0.472441 in
9.38 kN5.03 kN——0.07 kg70 g
NSK6004ZZDeep groove ball bearing
Bore diameter (d)
20 mm
0.787402 in
Outside diameter (D)
42 mm
1.653543 in
Bearing width (B)
12 mm
0.472441 in
10.3 kN5 kN———
KOYO6004 ZZDeep groove ball bearing
Bore diameter (d)
20 mm
0.787402 in
Outside diameter (D)
42 mm
1.653543 in
Width (B)
12 mm
0.472441 in
11.7 kN5.05 kN—17000 rpmLimiting Speeds(Grease Lub.): 17000 min-10.069 kg69 g
NACHI6004ZEDeep groove ball bearing
Bore diameter (d)
20 mm
0.787402 in
Outside diameter (D)
42 mm
1.653543 in
Bearing width (B)
12 mm
0.472441 in
11.8 kN5 kN———
NACHI6004ZZEDeep groove ball bearing
Bore diameter (d)
20 mm
0.787402 in
Outside diameter (D)
42 mm
1.653543 in
Bearing width (B)
12 mm
0.472441 in
11.8 kN5 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
SKF 6004-ZShield on one sideNot recordedCNSheet metalBearing steelNone
TIMKEN 6004-ZShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
SKF 6004-Z/C3Shield on one sideNot recordedC3Sheet metalBearing steelNone
SKF 6004 ZJEMShield on one sideNot recordedC3Sheet metalBearing steelNone
TIMKEN 6004-Z-C3ShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 6004-Z-NR-C3ShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 6004-ZZShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 6004-ZZ-C3ShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
TIMKEN 6004-ZZ-NRShieldedNot recordedNot recordedSteel cageNot recordedNot recorded
NSK 6004ZZMetal shields on both sidesNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 6004 ZZShielded ZZNot recordedNot recordedNot recordedNot recordedNot recorded
NACHI 6004ZEOne shieldNot recordedNot recordedNot recordedNot recordedNot recorded
NACHI 6004ZZETwo shieldsNot 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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