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6702 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 6702. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.

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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

6702 dimensions and recorded technical data

The recorded 6702 base designation measures 15×21×4 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from 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. 4 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)
KOYO6702Deep groove ball bearing
Bore diameter (d)
15 mm
0.590551 in
Outside diameter (D)
21 mm
0.826772 in
Width (B)
4 mm
0.15748 in
1.15 kN0.58 kN—29000 rpmLimiting Speeds(Grease Lub.): 29000 min-1Limiting Speeds(Oil Lub.): 35000 min-10.004 kg4 g
KOYO6702 2RSDeep groove ball bearing
Bore diameter (d)
15 mm
0.590551 in
Outside diameter (D)
21 mm
0.826772 in
Width (B)
4 mm
0.15748 in
1.15 kN0.58 kN—16000 rpmLimiting Speeds(Grease Lub.): 16000 min-10.004 kg4 g
KOYO6702 2RUDeep groove ball bearing
Bore diameter (d)
15 mm
0.590551 in
Outside diameter (D)
21 mm
0.826772 in
Width (B)
4 mm
0.15748 in
1.15 kN0.58 kN—29000 rpmLimiting Speeds(Grease Lub.): 29000 min-10.004 kg4 g
KOYO6702 ZZXDeep groove ball bearing
Bore diameter (d)
15 mm
0.590551 in
Outside diameter (D)
21 mm
0.826772 in
Width (B)
4 mm
0.15748 in
1.15 kN0.58 kN—29000 rpmLimiting Speeds(Grease Lub.): 29000 min-10.004 kg4 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
KOYO 6702OpenNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 6702 2RSContact sealedNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 6702 2RUNon-contact sealedNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 6702 ZZXShielded ZZNot 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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