Certified interchangeability
- Matching model designation and installation envelope
- Reviewed mounting-hole and bolt-circle interfaces
- Gear arrangement matched to the referenced configuration
INA VSA 250855 N Slewing Bearing Replacement
Level 3 VerifiedMERYDOM manufactures an engineering-verified replacement for the INA VSA 250855 N slewing bearing. The replacement is reviewed against the available dimensional, mounting and product-interface data for this reference.
The INA VSA 250855 N reference belongs to the Vsa 25 Series and uses a four-point contact ball, external gear slewing bearing configuration.
MERYDOM BRAND · CERTIFIED REPLACEMENTCertified product dataView complete specifications ↓ Factory assurance
VSA 250855 N
MERYDOM VerifiedLevel 3 · Engineering verification recordMERYDOM-manufactured slewing bearing certified for interchange with INA VSA 250855 N.
- Overall OD (Do)
- 997 mm
- Overall ID (di)
- 755 mm
- Overall height
- Not published
- Gear arrangement
- External gear
- Mounting holes
- 28 / 28 outer / inner
- Bearing design
- Four-point contact ball
- Certified dimensional interchange
- MERYDOM controlled materials
- Factory documentation available
PRODUCT DIMENSIONS
View complete specifications ↓Published dimensions and interfaces
Every available catalog dimension, mounting interface and gear value is shown here in the original published unit.
Dimensions
- Mass (Mass)
- 145 kg
- Overall outside diameter (Da)
- 997 mm
- Overall inside diameter (di)
- 755 mm
- Inside centring diameter (diZT)
- 757 mm
- Catalog diameter Di (Di)
- 853 mm
- Catalog centring diameter DiZT (DiZT)
- 855 mm
- Catalog diameter da (da)
- 857 mm
Mounting
- Outer ring bolt circle (La)
- 916 mm
- Inner ring bolt circle (Li)
- 795 mm
- Common mounting-hole count (nB)
- 28
Gear
- Gear pitch diameter (d0)
- 981 mm
- Gear module (m)
- 9 mm
- Gear tooth count (z)
- 109
MERYDOM CERTIFIED SPECIFICATION
MERYDOM Factory Verified · Controlled recordINA VSA 250855 N Slewing Bearing Specifications
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 | VSA 250855 N |
| Certified interchangeable with | INA VSA 250855 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 | Vsa 25 Series |
| Reference model | VSA 250855 N |
| System of measurement | Metric |
| Bearing structure | Four-point contact ball |
| Gear arrangement | External gear |
| Dimensions | |
| Mass (Mass) | 145 kg |
| Overall outside diameter (Da) | 997 mm |
| Overall inside diameter (di) | 755 mm |
| Inside centring diameter (diZT) | 757 mm |
| Catalog diameter Di (Di) | 853 mm |
| Catalog centring diameter DiZT (DiZT) | 855 mm |
| Catalog diameter da (da) | 857 mm |
| Mounting | |
| Outer ring bolt circle (La) | 916 mm |
| Inner ring bolt circle (Li) | 795 mm |
| Common mounting-hole count (nB) | 28 |
| Gear | |
| Gear pitch diameter (d0) | 981 mm |
| Gear module (m) | 9 mm |
| Gear tooth count (z) | 109 |
| Ratings | |
| Maximum permissible radial load (Fr perm) | 338.8 kN |
| Normal tooth force (Fznorm) | 55.1 kN |
| Maximum tooth force (Fzmax) | 80.2 kN |
| Basic dynamic axial load rating (Ca) | 485 kN |
| Basic static axial load rating (C0a) | 2,550 kN |
| Basic dynamic radial load rating (Cr) | 315 kN |
| Basic static radial load rating (C0r) | 1,150 kN |
| Radial clearance (Radial clearance) | 0,03 incl. 0,13 mm |
| Axial tilting clearance (Axial tilting clearance) | 0,05 incl. 0,24 mm |
Level 3 · MERYDOM Engineering VerifiedReviewed by MERYDOM Engineering Department. Evidence date and drawing revision are not published.
SERIES LOAD CAPACITY
Vsa 25 Series load chart
Use the model designation in the catalog legend as an initial moment-and-thrust capacity reference.
Engineering selection note
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.
MERYDOM ENGINEERING
MERYDOM Replacement for INA VSA 250855 N
This MERYDOM bearing has been reviewed against the published model envelope, mounting interfaces, gear configuration and declared material specification for replacement use.
MERYDOM construction
- Configurable 42CrMo or 50Mn ring material options
- NBR nitrile-rubber sealing system
- Configurable engineering nylon or brass spacer options
Factory documentation
- Engineering verification by MERYDOM Engineering Department
- Verification evidence is maintained in the controlled internal record
- Drawing revision and final documentation package are confirmed with the quotation
Application confirmation
- Confirm support flatness, bolt grade and preload
- Verify applied loads, duty cycle and lubrication
- Confirm temperature, environment and installation conditions
LEGAL & ENGINEERING NOTICE
Independent replacement certification
- MERYDOM is the manufacturer and certifying party for the MERYDOM product displayed on this page.
- Third-party brand names and model numbers remain the property of their respective owners and are used only to identify the intended interchange reference.
- MERYDOM is an independent manufacturer and is not affiliated with, endorsed by or sponsored by the referenced OEM.
- The interchangeability statement applies to the matching model designation and the published verification scope; application suitability still depends on loads, duty cycle, installation, lubrication and operating environment.
- The approved quotation, manufacturing drawing and contract technical agreement control the final supplied product.
MERYDOM REPLACEMENT SUPPORT
Request price & deliveryReady for price, delivery and application confirmation?
Send the required quantity and operating conditions. MERYDOM will confirm the supply configuration, documentation package and delivery schedule for model VSA 250855 N.