Find · understand · compare
623 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 623. 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.
623 dimensions and recorded technical data
The recorded 623 base designation measures 3×10×4 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from SKF, 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. 28 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) |
|---|---|---|---|---|---|---|
| SKF623Deep groove ball bearing |
| 0.54 kN | 0.18 kN | 130000 rpm | 80000 rpm | 0.0015 kg1.5 g |
| NSK623Deep groove ball bearing |
| 0.695 kN | 0.218 kN | — | — | 0.00165 kg1.65 g |
| KOYO623Deep groove ball bearing |
| 0.8 kN | 0.22 kN | — | 52000 rpmLimiting Speeds(Grease Lub.): 52000 min-1Limiting Speeds(Oil Lub.): 63000 min-1 | 0.001 kg1 g |
| SKF623-2RS1Deep groove ball bearing with seals or shields |
| 0.54 kN | 0.18 kN | — | 40000 rpm | 0.0016 kg1.6 g |
| SKF623-2ZDeep groove ball bearing with seals or shields |
| 0.54 kN | 0.18 kN | 130000 rpm | 60000 rpm | 0.0016 kg1.6 g |
| SKF623-2Z/C3Deep groove ball bearing with seals or shields |
| 0.54 kN | 0.18 kN | 130000 rpm | 60000 rpm | 0.002 kg2 g |
| TIMKEN623 / 612Tapered roller bearing |
| 207 kN | 244 kN | — | — | 2.1 kg2100 g |
| TIMKEN623 / 612ATapered roller bearing |
| 207 kN | 244 kN | — | — | 2.07 kg2070 g |
| TIMKEN623 / 612BTapered roller bearing |
| 207 kN | 244 kN | — | — | 2.17 kg2170 g |
| TIMKEN623 / 612-STapered roller bearing |
| 207 kN | 244 kN | — | — | 2.11 kg2110 g |
| TIMKEN623 / 613-STapered roller bearing |
| 207 kN | 244 kN | — | — | 1.79 kg1790 g |
| TIMKEN623 / 614XTapered roller bearing |
| 207 kN | 244 kN | — | — | 1.84 kg1840 g |
| TIMKEN623A / 612Tapered roller bearing |
| 207 kN | 244 kN | — | — | 2.07 kg2070 g |
| TIMKEN623A / 612ATapered roller bearing |
| 207 kN | 244 kN | — | — | 2.04 kg2040 g |
| TIMKEN623A / 612-STapered roller bearing |
| 207 kN | 244 kN | — | — | 2.08 kg2080 g |
| TIMKEN623A / 613-STapered roller bearing |
| 207 kN | 244 kN | — | — | 1.76 kg1760 g |
| TIMKEN623A / 614XTapered roller bearing |
| 207 kN | 244 kN | — | — | 1.81 kg1810 g |
| TIMKEN623-S / 612Tapered roller bearing |
| 207 kN | 244 kN | — | — | 2.08 kg2080 g |
| TIMKEN623-S / 612ATapered roller bearing |
| 207 kN | 244 kN | — | — | 2.05 kg2050 g |
| TIMKEN623-S / 612-STapered roller bearing |
| 207 kN | 244 kN | — | — | 2.09 kg2090 g |
| TIMKEN623-S / 613-STapered roller bearing |
| 207 kN | 244 kN | — | — | 1.77 kg1770 g |
| TIMKEN623-S / 614XTapered roller bearing |
| 207 kN | 244 kN | — | — | 1.82 kg1820 g |
| NSK623ZZDeep groove ball bearing |
| 0.695 kN | 0.218 kN | — | — | 0.00166 kg1.66 g |
| KOYO623 2RSDeep groove ball bearing |
| 0.8 kN | 0.22 kN | — | 44000 rpmLimiting Speeds(Grease Lub.): 44000 min-1Limiting Speeds(Oil Lub.): - min-1 | 0.001 kg1 g |
| KOYO623/612Tapered roller bearing |
| 218 kN | 217 kN | — | 3500 rpmLimiting Speeds(Grease Lub.): 3500 min-1Limiting Speeds(Oil Lub.): 4600 min-1 | 2.123 kg2123 g |
| KOYO623 ZZDeep groove ball bearing |
| 0.8 kN | 0.22 kN | — | 52000 rpmLimiting Speeds(Grease Lub.): 52000 min-1Limiting Speeds(Oil Lub.): - min-1 | 0.001 kg1 g |
| EZO623HDeep groove ball bearing |
| 0.538 kN | 0.175 kN | — | — | 0.00147 kg1.47 g |
| EZO623ZZDeep groove ball bearing |
| 0.633 kN | 0.218 kN | — | — | 0.00157 kg1.57 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 623 | Without | Normal | CN | Sheet metal | Bearing steel | None |
| NSK 623 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 623 | Open | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| SKF 623-2RS1 | Seal on both sides | Normal | CN | Sheet metal | Bearing steel | Grease |
| SKF 623-2Z | Shield on both sides | Normal | CN | Sheet metal | Bearing steel | Grease |
| SKF 623-2Z/C3 | Shield on both sides | Not recorded | C3 | Sheet metal | Bearing steel | Grease |
| TIMKEN 623 / 612 | Open | ABMA Class 2 | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 623 / 612A | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623 / 612B | Open | ABMA Class 2 | Not recorded | Steel cage | Not recorded | Not recorded |
| TIMKEN 623 / 612-S | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623 / 613-S | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623 / 614X | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623A / 612 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623A / 612A | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623A / 612-S | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623A / 613-S | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623A / 614X | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623-S / 612 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623-S / 612A | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623-S / 612-S | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623-S / 613-S | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| TIMKEN 623-S / 614X | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| NSK 623ZZ | Metal shields on both sides (ZZ) | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 623 2RS | Contact sealed 2RS | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 623/612 | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| KOYO 623 ZZ | Shielded ZZ | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| EZO 623H | Open (no closure suffix in this catalogue marking) | Not recorded | Not recorded | Not recorded | Stainless-steel rings and balls | Not recorded |
| EZO 623ZZ | Two pressed-steel shields | Not recorded | Not recorded | Not recorded | High-carbon chromium bearing steel | 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.
SKF
623
Deep groove ball bearing
View full technical record →KOYO623
Deep groove ball bearing
View full technical record →NSK623
Deep groove ball bearing
View full technical record →SKF6230
Deep groove ball bearing
View full technical record →FAG6230
Deep groove ball bearing
View full technical record →TIMKEN6230
Deep groove ball bearing
View full technical record →KOYO6230
Deep groove ball bearing
View full technical record →NSK6230
Deep groove ball bearing
View full technical record →TIMKEN62300-2RS
Deep groove ball bearing
View full technical record →SKF62300-2RS1
Deep groove ball bearing with seals or shields
View full technical record →TIMKEN62300-2RS-C3
Deep groove ball bearing
View full technical record →FAG62300-A-2RSR
Deep groove ball 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.