NU 306 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with NU 306. 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.
NU 306 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. 14 recorded variants are listed. A dash means the value is missing, not zero.
No recorded variant matches these filters. Clear a filter to see other records; no substitute has been inferred.
| Brand / full designation | Named dimensions (mm / in) | Dynamic C (kN) | Static C0 (kN) | Reference speed (rpm) | Limiting speed (rpm) | Mass (kg / g) |
|---|---|---|---|---|---|---|
| SKFNU 306 ECJSingle row cylindrical roller bearing, NU design |
| 58.5 kN | 48 kN | 11000 rpm | 12000 rpm | 0.356 kg356 g |
| SKFNU 306 ECJ/C3Single row cylindrical roller bearing, NU design |
| 58.5 kN | 48 kN | 11000 rpm | 12000 rpm | 0.364 kg364 g |
| SKFNU 306 ECMSingle row cylindrical roller bearing, NU design |
| 58.5 kN | 48 kN | 11000 rpm | 12000 rpm | 0.41 kg410 g |
| SKFNU 306 ECMLSingle row cylindrical roller bearing, NU design |
| 58.5 kN | 48 kN | 11000 rpm | 19000 rpm | 0.402 kg402 g |
| SKFNU 306 ECPSingle row cylindrical roller bearing, NU design |
| 58.5 kN | 48 kN | 11000 rpm | 12000 rpm | 0.364 kg364 g |
| SKFNU 306 ECP/C3Single row cylindrical roller bearing, NU design |
| 58.5 kN | 48 kN | 11000 rpm | 12000 rpm | 0.358 kg358 g |
| FAGNU306-E-XL-M1Cylindrical roller bearing |
| 61 kN | 48 kN | 8900 rpm | 18500 rpm | 0.401 kg401 g |
| FAGNU306-E-XL-TVP2Cylindrical roller bearing |
| 61 kN | 48 kN | 8900 rpm | 14200 rpm | 0.3664 kg366.4 g |
| FAGNU306-E-XL-TVP2-C3Cylindrical roller bearing |
| 61 kN | 48 kN | 8900 rpm | 14200 rpm | 0.366 kg366 g |
| FAGNU306-E-XL-TVP2-C4Cylindrical roller bearing |
| 61 kN | 48 kN | 8900 rpm | 14200 rpm | 0.369 kg369 g |
| FAGNU306-E-XL-TVP2-C5Cylindrical roller bearing |
| 61 kN | 48 kN | 8900 rpm | 14200 rpm | 0.3693 kg369.3 g |
| NSKNU306EWCylindrical roller bearing |
| 65.5 kN | 50 kN | — | — | — |
| KOYONU306RCylindrical roller bearing |
| 66.5 kN | 50.2 kN | — | 8700 rpmLimiting Speeds(Grease Lub.): 8700 min-1Limiting Speeds(Oil Lub.): 12000 min-1 | 0.361 kg361 g |
| KOYONU306VR-1C3Automotive bearing |
| — | — | — | — | 0.38 kg380 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 / designation | Closure | Original precision | Clearance | Cage | Material | Lubricant |
|---|---|---|---|---|---|---|
| SKF NU 306 ECJ | Without | Not recorded | CN | Sheet metal | Not recorded | None |
| SKF NU 306 ECJ/C3 | Without | Not recorded | C3 | Sheet metal | Not recorded | None |
| SKF NU 306 ECM | Without | Not recorded | CN | Machined brass | Not recorded | None |
| SKF NU 306 ECML | Without | Not recorded | CN | Machined brass | Not recorded | None |
| SKF NU 306 ECP | Without | Not recorded | CN | Non-metallic | Not recorded | None |
| SKF NU 306 ECP/C3 | Without | Not recorded | C3 | Non-metallic | Not recorded | None |
| FAG NU306-E-XL-M1 | Not recorded | PN — Normal (ISO 492:2023) | CN (Group N) — Normal internal clearance | M1 — Two Piece Brass Cage Roller Guided | Not recorded | Not recorded |
| FAG NU306-E-XL-TVP2 | Not recorded | PN — Normal (ISO 492:2023) | CN (Group N) — Normal internal clearance | TVP2 — Solid Window Cage made from PA66 | Not recorded | Not recorded |
| FAG NU306-E-XL-TVP2-C3 | Not recorded | PN — Normal (ISO 492:2023) | C3 (Group 3) — Internal clearance larger than CN | TVP2 — Solid Window Cage made from PA66 | Not recorded | Not recorded |
| FAG NU306-E-XL-TVP2-C4 | Not recorded | PN — Normal (ISO 492:2023) | C4 (Group 4) — Internal clearance larger than C3 | TVP2 — Solid Window Cage made from PA66 | Not recorded | Not recorded |
| FAG NU306-E-XL-TVP2-C5 | Not recorded | PN — Normal (ISO 492:2023) | C5 (Group 5) — Internal clearance larger than C4 | TVP2 — Solid Window Cage made from PA66 | Not recorded | Not recorded |
| NSK NU306EW | Not recorded | Not recorded | Not recorded | Pressed steel | Not recorded | Not recorded |
| KOYO NU306R | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO NU306VR-1C3 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not 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.
NU3060-M1
Cylindrical roller bearing
View full technical record →TIMKENNU30/630EMAC3
Cylindrical roller bearing
View full technical record →SKFNU 3064 ECM
Single row cylindrical roller bearing, NU design
View full technical record →TIMKENNU3064EMA
Cylindrical roller bearing
View full technical record →FAGNU3064-M1
Cylindrical roller bearing
View full technical record →TIMKENNU3068EMA
Cylindrical roller bearing
View full technical record →FAGNU3068-M1
Cylindrical roller bearing
View full technical record →FAGNU3068-M1-C3
Cylindrical roller bearing
View full technical record →SKFNU 3068 MA
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 306 ECJ
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 306 ECJ/C3
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 306 ECM
Single row cylindrical roller bearing, NU design
View full technical record →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.