NU234 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with NU234. 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.
NU234 dimensions and recorded technical data
The recorded NU234 base designation measures 170×310×52 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from NTN. 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. 11 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) |
|---|---|---|---|---|---|---|
| NTNNU234Cylindrical roller bearing |
| 530 kN | 635 kN | — | — | 17 kg17000 g |
| SKFNU 234 ECMSingle row cylindrical roller bearing, NU design |
| 695 kN | 815 kN | 2200 rpm | 2400 rpm | 17.9 kg17900 g |
| SKFNU 234 ECM/C3Single row cylindrical roller bearing, NU design |
| 695 kN | 815 kN | 2200 rpm | 2400 rpm | 17.2 kg17200 g |
| SKFNU 234 ECMLSingle row cylindrical roller bearing, NU design |
| 695 kN | 815 kN | 2200 rpm | 3800 rpm | 17.6 kg17600 g |
| SKFNU 234 ECML/C3Single row cylindrical roller bearing, NU design |
| 695 kN | 815 kN | 2200 rpm | 3800 rpm | 17.6 kg17600 g |
| FAGNU234-E-XL-M1Cylindrical roller bearing |
| 700 kN | 780 kN | 1970 rpm | 3850 rpm | 17.58 kg17580 g |
| TIMKENNU234EMACylindrical roller bearing |
| 685 kN | 822 kN | — | — | 17.6 kg17600 g |
| TIMKENNU234EMAC3Cylindrical roller bearing |
| 685 kN | 822 kN | — | — | 17.6 kg17600 g |
| TIMKENNU234EMAC4Cylindrical roller bearing |
| 685 kN | 822 kN | — | — | 17.6 kg17600 g |
| NSKNU234EMCylindrical roller bearing |
| 740 kN | 800 kN | — | — | — |
| KOYONU234RCylindrical roller bearing |
| 754 kN | 802 kN | — | 1900 rpmLimiting Speeds(Grease Lub.): 1900 min-1Limiting Speeds(Oil Lub.): 2200 min-1 | 18.6 kg18600 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 |
|---|---|---|---|---|---|---|
| NTN NU234 | Not recorded | Not recorded | CN | brass cage | Not recorded | Not recorded |
| SKF NU 234 ECM | Without | Not recorded | CN | Machined brass | Not recorded | None |
| SKF NU 234 ECM/C3 | Without | Not recorded | C3 | Machined brass | Not recorded | None |
| SKF NU 234 ECML | Without | Not recorded | CN | Machined brass | Not recorded | None |
| SKF NU 234 ECML/C3 | Without | Not recorded | C3 | Machined brass | Not recorded | None |
| FAG NU234-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 |
| TIMKEN NU234EMA | Open | Not recorded | Not recorded | Window Brass cage | Not recorded | Not recorded |
| TIMKEN NU234EMAC3 | Open | Not recorded | Not recorded | Window Brass cage | Not recorded | Not recorded |
| TIMKEN NU234EMAC4 | Open | Not recorded | Not recorded | Window Brass cage | Not recorded | Not recorded |
| NSK NU234EM | Not recorded | Not recorded | Not recorded | Machined brass | Not recorded | Not recorded |
| KOYO NU234R | 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.
NU234
Cylindrical roller bearing
View full technical record →KOYONU2340
Cylindrical roller bearing
View full technical record →SKFNU 2340 ECML
Single row cylindrical roller bearing, NU design
View full technical record →NSKNU2340EM
Cylindrical roller bearing
View full technical record →TIMKENNU2340EMA
Cylindrical roller bearing
View full technical record →TIMKENNU2340EMAC3
Cylindrical roller bearing
View full technical record →TIMKENNU2340EMAC4
Cylindrical roller bearing
View full technical record →FAGNU2340-EX-TB-M1
Cylindrical roller bearing
View full technical record →KOYONU2344
Cylindrical roller bearing
View full technical record →SKFNU 2344 ECMA
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 2344 ECMA/C3
Single row cylindrical roller bearing, NU design
View full technical record →SKFNU 2344 ECML
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.