Four-point contact ball
153 Verified modelsOD 180–2,971 mm · ID 40–2,544 mm
Review 298 factory-verified MERYDOM replacements across 16 IMO series, then choose a series for its verified model list.
Enter an exact or partial reference model. Exact matches are listed first and every result opens its canonical MERYDOM specification page.
Four-point contact ball · Three-row roller · Roller / ball combination · Double axial ball · Ball bearing with flange rings
Gear optionsExternal gear · Ungeared · Internal gear
Compare construction, gearing, verified model coverage and published dimension ranges before opening a series.
| Series | Bearing structure | Gear options | Verified models | Dimension coverage |
|---|---|---|---|---|
| IMO 116 Series | Four-point contact ball | External gear · Ungeared | 20 | OD180–580 mmID40–440 mmHNot published |
| IMO 120 Series | Four-point contact ball | External gear · Internal gear · Ungeared | 48 | OD386–1,198.4 mmID225–1,022 mmHNot published |
| IMO 125 Series | Four-point contact ball | External gear · Internal gear · Ungeared | 33 | OD555–1,598 mmID304–1,355 mmHNot published |
| IMO 150 Series | Four-point contact ball | External gear · Internal gear | 9 | OD1,971–2,971 mmID1,554–2,544 mmHNot published |
| IMO 320 Series | Three-row roller | External gear · Internal gear | 10 | OD1,397–2,236.8 mmID1,032–1,853 mmHNot published |
| IMO 325 Series | Three-row roller | External gear · Internal gear | 10 | OD1,981–3,096 mmID1,520–2,619 mmHNot published |
| IMO 332 Series | Three-row roller | External gear · Internal gear | 12 | OD2,458–4,351.6 mmID1,908–3,782 mmHNot published |
| IMO 340 Series | Three-row roller | External gear · Internal gear | 10 | OD3,038–4,867.2 mmID2,460–4,262 mmHNot published |
| IMO 350 Series | Three-row roller | External gear · Internal gear | 10 | OD3,415–5,179.2 mmID2,736–4,485 mmHNot published |
| IMO 532 Series | Roller / ball combination | External gear | 4 | OD3,772.8–4,476.8 mmID3,358–4,058 mmHNot published |
| IMO 540 Series | Roller / ball combination | External gear | 4 | OD4,536–5,176 mmID4,026–4,676 mmHNot published |
| IMO 840 Series | Double axial ball | External gear · Internal gear | 9 | OD2,350–3,456 mmID1,920–3,006 mmHNot published |
| IMO 850 Series | Double axial ball | External gear · Internal gear | 10 | OD2,725–4,456 mmID2,250–3,970 mmHNot published |
| IMO 920 Series | Ball bearing with flange rings | External gear · Internal gear · Ungeared | 48 | OD404–1,198.4 mmID204–985 mmHNot published |
| IMO 932 Series | Ball bearing with flange rings | External gear · Internal gear · Ungeared | 18 | OD1,096.2–1,600 mmID805–1,312 mmHNot published |
| IMO Other Standard Ball Series | Four-point contact ball | External gear · Internal gear · Ungeared | 43 | ODNot publishedIDNot publishedHNot published |
The MERYDOM database publishes 298 engineering-verified replacement references across 16 IMO series. Current coverage spans 5 bearing structures and 3 gear configurations, with model-level dimensions, mounting interfaces and gear data shown where validated.
Use the series comparison to narrow the reference by construction and size, then open the exact model page for its published verification scope. IMO is a third-party reference brand; MERYDOM is the independent replacement manufacturer and confirms final application suitability during engineering review.
Only bearing structures present in the verified IMO dataset are shown. Each group links to the real Series Hubs that contain those references.
OD 180–2,971 mm · ID 40–2,544 mm
OD 404–1,600 mm · ID 204–1,312 mm
OD 1,397–5,179.2 mm · ID 1,032–4,485 mm
OD 2,350–4,456 mm · ID 1,920–3,970 mm
OD 3,772.8–5,176 mm · ID 3,358–4,676 mm
Compare the verified reference count and related Series for each gear arrangement without creating indexable filter combinations.
OD 180–5,179.2 mm
OD 386–5,015 mm
OD 180–1,600 mm
The publication levels distinguish reference indexing, interface completeness, an approved replacement claim and public proven evidence. Counts come from current database records; no level is upgraded for SEO.
Use this six-step workflow to move from a third-party reference to final MERYDOM engineering confirmation.
These controlled size bands open a noindex catalog filter scoped to the current Brand or Series. They do not create new SEO landing pages.
One engineering-verified reference is selected from each of the largest Series to provide a compact technical starting point. This is a coverage sample, not a popularity claim.
Four-point contact ball · Ungeared
386 × 242 × — mmBall bearing with flange rings · Ungeared
418 × 204 × — mmFour-point contact ball · Ungeared
Not publishedFour-point contact ball · Ungeared
555 × 355 × — mmFour-point contact ball · Ungeared
180 × 40 × — mmBall bearing with flange rings · Ungeared
1,100 × 805 × — mmOnly approved public files are counted. When no public file is listed, MERYDOM can review the reference, application and required format before releasing an engineering file.
Send the reference model, quantity, application, operating conditions and any available drawing for final engineering review.