Outboard Motor Tapered Roller Bearings
MARATO supplies tapered roller bearings for selected outboard motor lower-unit gearboxes, drive shafts and transmission assemblies. Their cone-shaped rolling elements and angled raceways allow them to support combined radial and axial loads.
A typical tapered roller bearing consists of a cone assembly containing the inner ring, tapered rollers and cage, together with a separate outer cup. The cone and cup must be used as a correctly matched set unless the bearing specification states otherwise.
Available Bearing References
| Bearing Code | Reference OE Number | Reference Size or Application |
|---|---|---|
| 32005X | 93332-00005 | 25 × 47 × 15 mm; selected 9.9–30 HP applications |
| 32205R | Confirm by original bearing or OE number | Selected outboard motor gearbox applications |
| 4T-32203R, P6 grade | Confirm by original bearing or OE number | Selected precision gearbox applications |
| Attribute name | Values |
|---|---|
| Bearing Type | Tapered Roller Bearing |
| Bearing References | 32005X, 32205R, 4T-32203R |
| Application | Outboard Motor Gearbox, Drive Shaft, Propeller Shaft |
| Load Direction | Combined Radial and Axial Load |
| Components | Cone Assembly and Outer Cup |
| Inside Diameter | According to bearing code |
| Outside Diameter | According to bearing code |
| Width | According to bearing code |
| Precision Grade | Standard, P6 for selected references |
| OE Number | According to outboard motor model |
| Supply Type | Replacement, Wholesale, OEM |
The listed bearing codes, dimensions and horsepower ranges are reference information only. Compatibility can vary according to the outboard motor brand, complete model, production year, gearbox configuration and installation position.
Typical Applications
- Outboard motor lower-unit gearboxes
- Drive-shaft bearing positions
- Propeller-shaft support positions
- Bevel gear and transmission assemblies
- Marine engine gearbox repair
- Outboard motor maintenance and rebuilding
Product Features
- Supports combined radial and axial loads
- Precision-ground tapered rollers and raceways
- Separate cone and outer cup construction
- Suitable for selected high-load gearbox positions
- Available for replacement, wholesale and OEM supply
How to Select the Correct Bearing
Please provide the following information before ordering:
- Outboard motor brand and complete model
- Engine horsepower and production year
- Original OE or replacement part number
- Complete bearing code marked on the original bearing
- Inside diameter, outside diameter and width
- Installation position in the lower-unit gearbox
- Whether the cone and outer cup are both required
- Clear photos of the original bearing and gearbox position
- Required order quantity
Installation and Selection Notes
The bearing cone and outer cup should have matching specifications. Bearing clearance, preload, shaft condition and housing condition can affect gearbox operation and bearing service life. Installation should be completed using suitable bearing tools and the correct technical procedure.
Product Range Clarification
This product page covers tapered roller bearings including 32005X, 32205R and 4T-32203R. Needle roller cages, drawn-cup needle bearings, thrust needle bearings, loose needle rollers and special NA/RNA needle bearings are listed on separate product pages.
Wholesale and OEM Supply
MARATO supplies outboard motor bearings and marine replacement parts to importers, wholesalers, repair workshops and equipment-parts distributors. Samples, mixed bearing references, bulk quantities, customized packaging and OEM branding are available.
Please send the bearing code, OE number, dimensions, outboard motor information and original bearing photos for selection and quotation.
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