Certified interchangeability
- Matching model designation and installation envelope
- Reviewed mounting-hole and bolt-circle interfaces
- Gear arrangement matched to the referenced configuration
MERYDOM manufactures an engineering-verified replacement for the INA VSI 250755 N slewing bearing. The replacement is reviewed against the available dimensional, mounting and product-interface data for this reference.
The INA VSI 250755 N reference belongs to the Vsi 25 Series and uses a four-point contact ball, internal gear slewing bearing configuration.
MERYDOM-manufactured slewing bearing certified for interchange with INA VSI 250755 N.
Every available catalog dimension, mounting interface and gear value is shown here in the original published unit.
MERYDOM product identity, certification, materials and dimensional data for the certified replacement.
| Technical parameter | MERYDOM certified product value |
|---|---|
| MERYDOM Certified Product | |
| Product brand | MERYDOM |
| MERYDOM model | VSI 250755 N |
| Certified interchangeable with | INA VSI 250755 N |
| Factory verification | Level 3 · Engineering Verified |
| Reviewed by | MERYDOM Engineering Department |
| Verification metadata | Controlled internal record; date and drawing revision are not published. |
| Materials | |
| Configurable ring material options | 42CrMo / 50Mn |
| Seal material | NBR · Nitrile rubber |
| Configurable spacer material options | Engineering nylon / Brass |
| Identification | |
| Reference brand | INA |
| Series | Vsi 25 Series |
| Reference model | VSI 250755 N |
| System of measurement | Metric |
| Bearing structure | Four-point contact ball |
| Gear arrangement | Internal gear |
| Dimensions | |
| Mass (Mass) | 119 kg |
| Overall outside diameter (Da) | 855 mm |
| Outside centring diameter (DaZT) | 853 mm |
| Overall inside diameter (di) | 610 mm |
| Catalog diameter Di (Di) | 753 mm |
| Catalog diameter da (da) | 757 mm |
| Catalog centring diameter daZT (daZT) | 755 mm |
| Mounting | |
| Outer ring bolt circle (La) | 815 mm |
| Inner ring bolt circle (Li) | 694 mm |
| Common mounting-hole count (nB) | 24 |
| Gear | |
| Gear pitch diameter (d0) | 630 mm |
| Gear module (m) | 10 mm |
| Gear tooth count (z) | 63 |
| Ratings | |
| Maximum permissible radial load (Fr perm) | 290.4 kN |
| Normal tooth force (Fznorm) | 68 kN |
| Maximum tooth force (Fzmax) | 98.9 kN |
| Basic dynamic axial load rating (Ca) | 460 kN |
| Basic static axial load rating (C0a) | 2,250 kN |
| Basic dynamic radial load rating (Cr) | 300 kN |
| Basic static radial load rating (C0r) | 1,010 kN |
| Radial clearance (Radial clearance) | 0,03 incl. 0,13 mm |
| Axial tilting clearance (Axial tilting clearance) | 0,05 incl. 0,24 mm |
Use the model designation in the catalog legend as an initial moment-and-thrust capacity reference.
This catalog chart is a preliminary selection aid. Final MERYDOM application approval must also consider mounting rigidity, bolt capacity, duty cycle, lubrication and operating conditions.
This MERYDOM bearing has been reviewed against the published model envelope, mounting interfaces, gear configuration and declared material specification for replacement use.
Send the required quantity and operating conditions. MERYDOM will confirm the supply configuration, documentation package and delivery schedule for model VSI 250755 N.