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1208 bearing dimensions & suffix variants

Look up recorded dimensions for designations beginning with 1208. 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

1208 dimensions and recorded technical data

The recorded 1208 base designation measures 40×80×18 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from NSK, 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. 10 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)
NSK1208Self-aligning ball bearing
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Bearing width (B)
18 mm
0.708661 in
21.2 kN6.5 kN——0.42 kg420 g
KOYO1208Self-aligning ball bearing
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Width (B)
18 mm
0.708661 in
24.1 kN6.5 kN—7500 rpmLimiting Speeds(Grease Lub.): 7500 min-1Limiting Speeds(Oil Lub.): 9200 min-10.417 kg417 g
SKF1208 EKTN9Self-aligning ball bearing with tapered bore
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Width (B)
18 mm
0.708661 in
19.9 kN6.95 kN18000 rpm11000 rpm0.405 kg405 g
SKF1208 EKTN9/C3Self-aligning ball bearing with tapered bore
Recorded bore (d)
40 mm
1.574803 in
Recorded outside dimension (D)
80 mm
3.149606 in
Catalogue width (symbol unverified)
18 mm
0.708661 in
19.9 kN6.95 kN18000 rpm11000 rpm0.405 kg405 g
SKF1208 ETN9Self-aligning ball bearing
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Width (B)
18 mm
0.708661 in
19.9 kN6.95 kN18000 rpm11000 rpm0.406 kg406 g
SKF1208 ETN9/C3Self-aligning ball bearing
Recorded bore (d)
40 mm
1.574803 in
Recorded outside dimension (D)
80 mm
3.149606 in
Catalogue width (symbol unverified)
18 mm
0.708661 in
19.9 kN6.95 kN18000 rpm11000 rpm0.405 kg405 g
FAG1208-K-TVH-C3Self-aligning ball bearing
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Width (B)
18 mm
0.708661 in
19.4 kN6.5 kN8600 rpm10100 rpm0.41 kg410 g
FAG1208-TVHSelf-aligning ball bearing
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Width (B)
18 mm
0.708661 in
19.4 kN6.5 kN8600 rpm10100 rpm0.415 kg415 g
FAG1208-TVH-C3Self-aligning ball bearing
Bore diameter (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Width (B)
18 mm
0.708661 in
19.4 kN6.5 kN8600 rpm10100 rpm0.412 kg412 g
NSK1208KSelf-aligning ball bearing
Nominal bore diameter (1:12 taper) (d)
40 mm
1.574803 in
Outside diameter (D)
80 mm
3.149606 in
Bearing width (B)
18 mm
0.708661 in
21.2 kN6.5 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
NSK 1208Not recordedNot recordedNot recordedNot recordedNot recordedNot recorded
KOYO 1208OpenNot recordedNot recordedNot recordedNot recordedNot recorded
SKF 1208 EKTN9WithoutNot recordedCNNon-metallicBearing steelNone
SKF 1208 EKTN9/C3WithoutNot recordedC3Non-metallicBearing steelNone
SKF 1208 ETN9WithoutNot recordedCNNon-metallicBearing steelNone
SKF 1208 ETN9/C3WithoutNot recordedC3Non-metallicBearing steelNone
FAG 1208-K-TVH-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedWithout — Bearing not greased
FAG 1208-TVHWithout — Not sealedPN — Normal (ISO 492:2023)CN (Group N) — Normal internal clearanceTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedWithout — Bearing not greased
FAG 1208-TVH-C3Without — Not sealedPN — Normal (ISO 492:2023)C3 (Group 3) — Internal clearance larger than CNTVH — Solid cage made of glass-fiber reinforced polyamide PA66Not recordedWithout — Bearing not greased
NSK 1208KNot 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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