NU 2318 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with NU 2318. 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.
NU 2318 dimensions and recorded technical data
The recorded NU 2318 base designation measures 90×190×64 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. 13 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) |
|---|---|---|---|---|---|---|
| KOYONU2318Cylindrical roller bearing |
| 408 kN | 395 kN | — | 2800 rpmLimiting Speeds(Grease Lub.): 2800 min-1Limiting Speeds(Oil Lub.): 4200 min-1 | 7.9 kg7900 g |
| SKFNU 2318 ECJSingle row cylindrical roller bearing, NU design |
| 500 kN | 540 kN | 3800 rpm | 4500 rpm | 8.1 kg8100 g |
| SKFNU 2318 ECJ/C3Single row cylindrical roller bearing, NU design |
| 500 kN | 540 kN | 3800 rpm | 4500 rpm | 8.1 kg8100 g |
| SKFNU 2318 ECMLSingle row cylindrical roller bearing, NU design |
| 500 kN | 540 kN | 3800 rpm | 6700 rpm | 8.81 kg8810 g |
| SKFNU 2318 ECPSingle row cylindrical roller bearing, NU design |
| 500 kN | 540 kN | 3800 rpm | 4500 rpm | 7.81 kg7810 g |
| FAGNU2318-E-XL-M1Cylindrical roller bearing |
| 510 kN | 530 kN | 3000 rpm | 6300 rpm | 8.8 kg8800 g |
| FAGNU2318-E-XL-TVP2Cylindrical roller bearing |
| 510 kN | 530 kN | 3000 rpm | 4900 rpm | 7.9 kg7900 g |
| TIMKENNU2318EJCylindrical roller bearing |
| 497 kN | 544 kN | — | — | 8 kg8000 g |
| TIMKENNU2318EJC3Cylindrical roller bearing |
| 497 kN | 544 kN | — | — | 8 kg8000 g |
| TIMKENNU2318EMACylindrical roller bearing |
| 497 kN | 544 kN | — | — | 8.8 kg8800 g |
| TIMKENNU2318EMAC3Cylindrical roller bearing |
| 497 kN | 544 kN | — | — | 8.8 kg8800 g |
| NSKNU2318ETCylindrical roller bearing |
| 535 kN | 535 kN | — | — | — |
| KOYONU2318RCylindrical roller bearing |
| 544 kN | 534 kN | — | 2800 rpmLimiting Speeds(Grease Lub.): 2800 min-1Limiting Speeds(Oil Lub.): 4100 min-1 | 8.12 kg8120 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 |
|---|---|---|---|---|---|---|
| KOYO NU2318 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| SKF NU 2318 ECJ | Without | Not recorded | CN | Sheet metal | Not recorded | None |
| SKF NU 2318 ECJ/C3 | Without | Not recorded | C3 | Sheet metal | Not recorded | None |
| SKF NU 2318 ECML | Without | Not recorded | CN | Machined brass | Not recorded | None |
| SKF NU 2318 ECP | Without | Not recorded | CN | Non-metallic | Not recorded | None |
| FAG NU2318-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 NU2318-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 |
| TIMKEN NU2318EJ | Open | Not recorded | Not recorded | Window Steel cage | Not recorded | Not recorded |
| TIMKEN NU2318EJC3 | Open | Not recorded | Not recorded | Window Steel cage | Not recorded | Not recorded |
| TIMKEN NU2318EMA | Open | Not recorded | Not recorded | Window Brass cage | Not recorded | Not recorded |
| TIMKEN NU2318EMAC3 | Open | Not recorded | Not recorded | Window Brass cage | Not recorded | Not recorded |
| NSK NU2318ET | Not recorded | Not recorded | Not recorded | Polyamide 66 | Not recorded | Not recorded |
| KOYO NU2318R | 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.
NU2318
Cylindrical roller bearing
View full technical record →SKFNU 2318 ECJ
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 2318 ECJ/C3
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 2318 ECML
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 2318 ECP
Single row cylindrical roller bearing, NU design
View full technical record →TIMKENNU2318EJ
Cylindrical roller bearing
View full technical record →TIMKENNU2318EJC3
Cylindrical roller bearing
View full technical record →TIMKENNU2318EMA
Cylindrical roller bearing
View full technical record →TIMKENNU2318EMAC3
Cylindrical roller bearing
View full technical record →NSKNU2318ET
Cylindrical roller bearing
View full technical record →FAGNU2318-E-XL-M1
Cylindrical roller bearing
View full technical record →FAGNU2318-E-XL-TVP2
Cylindrical roller bearing
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.