Certified interchangeability
- Matching model designation and installation envelope
- Reviewed mounting-hole and bolt-circle interfaces
- Gear arrangement matched to the referenced configuration
Factory-certified by MERYDOM to interchange with Rothe Erde 281.30.1200.013. The MERYDOM product uses the same model designation for direct cross-reference.
MERYDOM-manufactured slewing bearing certified for interchange with Rothe Erde 281.30.1200.013.
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 | 281.30.1200.013 |
| Certified interchangeable with | Rothe Erde 281.30.1200.013 |
| Factory verification | Level 3 · Engineering Verified |
| Approved drawing revision | Rev 1.0 |
| Reviewed by | MERYDOM Engineering Department |
| Certification date | 2026-08-16 |
| Materials | |
| Ring material options | 42CrMo / 50Mn |
| Seal material | NBR · Nitrile rubber |
| Spacer material options | Engineering nylon / Brass |
| Identification | |
| Reference brand | Rothe Erde |
| Series | 28 Series |
| Reference model | 281.30.1200.013 |
| System of measurement | Metric |
| Bearing structure | Profile Bearing |
| Gear arrangement | External gear |
| Dimensions | |
| Raceway diameter (DL) | 1255 mm1,255 mm |
| Overall outside diameter (Da) | 1398 mm1,398 mm |
| Overall inside diameter (Di) | 1105 mm1,105 mm |
| Overall height (H) | 90 mm |
| Catalog diameter O (O) | 1256,5 mm1,256.5 mm |
| Catalog diameter U (U) | 1253,5 mm1,253.5 mm |
| Catalog diameter C (C) | 1193 mm1,193 mm |
| Lower ring offset Hu (Hu) | 19 mm |
| Assembly weight (Weight) | 216 kg |
| Axial bearing play (Y_axial) | ≤ 0,45 mm0.45 mm |
| Radial bearing play (Y_radial) | ≤ 0,37 mm0.37 mm |
| Mounting | |
| Outer ring bolt circle (La) | 1316 mm1,316 mm |
| Outer ring mounting-hole count (na) | 42 |
| Metric bolt nominal size (M) | 20 mm |
| Thread depth (t) | 40 mm |
| Inner ring bolt circle (Li) | 1145 mm1,145 mm |
| Inner ring mounting-hole count (ni) | 42 |
| Inner ring mounting-hole diameter (B_inner) | 22 mm |
| Gear | |
| Gear pitch diameter (d) | 1380 mm1,380 mm |
| Gear module (m) | 10 mm |
| Gear tooth count (z) | 138 |
| Tip-height modification product k·m (k*m) | -1,0 mm-1 mm |
| Minimum gear face width (bmin) | 71 mm |
| Ratings | |
| Permitted circumferential force, normal (X1) | 36,40 kN36.4 kN |
| Permitted circumferential force, maximum (X2) | 72,80 kN72.8 kN |
| Miscellaneous | |
| Grease nipple count (n1) | 6 |
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 281.30.1200.013.