SKU:
Osculati-52.208.25
ID
1415103
$ 60.14
1-2 weeks delivery time
Shaft Diameter:
- 25
- 30
- 35
- 40
- 45
- 50
- 60
Stern Tube Diameter:
- 1 1/2"
- 1 3/4"
- 1 7/8"
- 2 1/8"
- 2 3/8"
- 2 5/8"
- 3 1/4"
Length, mm:
- 100
- 120
- 137
- 160
- 180
- 200
- 240
Osculati Resin Rubber Water Lubricated Propeller Shaft Cutless Bearings are designed to support and guide rotating propeller shafts in marine stern tube installations. Featuring a resin external housing and hydro-lubricating rubber lining, these cylindrical bearings are particularly suitable for aluminium hulls with aluminium shaft supports. The range includes seven configurations for metric shaft diameters from 25 to 60 mm, external bearing diameters from 1 1/2" to 3 1/4" (38.10–82.55 mm) and overall lengths from 100 to 240 mm. The resin outer frame provides the mounting structure, while the internal rubber lining forms the water-lubricated bearing surface. Select the required model according to shaft diameter, external bearing diameter and overall length.
- Description
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Osculati Resin Rubber Water Lubricated Propeller Shaft Cutless Bearings Ø25–60 mm
Osculati Resin Rubber Water Lubricated Propeller Shaft Cutless Bearings are designed for supporting and guiding rotating propeller shafts in marine propulsion systems. Each bearing combines a resin external housing with an internal hydro-lubricating rubber lining.
These shaft line bushings are particularly suitable for aluminium hulls equipped with aluminium shaft supports. The range includes seven dimensional configurations for propeller shaft diameters from 25 to 60 mm.
Resin External Housing
Each cutless bearing features a cylindrical resin external frame that forms the mounting structure for installation in the corresponding stern tube or shaft support assembly.
The resin housing surrounds the internal rubber bearing lining and provides a non-metallic external mounting surface.
Hydro-Lubricating Rubber Lining
The internal bearing surface is manufactured from hydro-lubricating rubber, designed to support the rotating propeller shaft in a water-lubricated marine propulsion system.
The rubber lining provides the shaft contact surface, while water lubrication helps reduce friction during operation.
Suitable for Aluminium Hulls and Shaft Supports
The manufacturer specifically identifies this bearing series as suitable for aluminium hulls with aluminium shaft supports.
The resin external housing distinguishes this range from conventional cutless bearings with a brass outer frame.
Metric Shaft Diameters and Imperial External Diameters
The bearings are available with metric internal shaft diameters and external bearing diameters specified in inches, with corresponding metric values provided in the manufacturer's catalogue.
Available shaft diameters range from 25 to 60 mm, while external bearing diameters range from 1 1/2" to 3 1/4".
Bearing Dimensions
The manufacturer's dimensional drawing identifies three measurements:
- Ø A – Shaft Diameter: Internal bearing diameter corresponding to the propeller shaft.
- Ø B – External Diameter: Outside diameter of the resin bearing housing.
- C – Length: Overall bearing length.
Available Models and Dimensions
The following table lists all seven configurations according to the Osculati technical catalogue.
Osculati Code Shaft Ø A (mm) External Ø B (inch) External Ø B (mm) Length C (mm) 52.208.25 25 1 1/2" 38.10 100 52.208.30 30 1 3/4" 44.45 120 52.208.35 35 1 7/8" 47.62 137 52.208.40 40 2 1/8" 53.97 160 52.208.45 45 2 3/8" 60.32 180 52.208.50 50 2 5/8" 66.67 200 52.208.60 60 3 1/4" 82.55 240
Key Features
- Brand: Osculati.
- Product Type: Marine Propeller Shaft Cutless Bearing.
- External Housing Material: Resin.
- Internal Bearing Material: Hydro-Lubricating Rubber.
- Lubrication: Water.
- Application: Marine Stern Tubes and Shaft Supports.
- Recommended Hull Application: Aluminium Hulls with Aluminium Shaft Supports.
- Shaft Diameter Range: 25–60 mm.
- External Diameter Range: 1 1/2"–3 1/4" (38.10–82.55 mm).
- Overall Length Range: 100–240 mm.
- Available Configurations: 7.
Technical Specifications
Manufacturer Osculati Product Type Stern Tube Cutless Bearing External Frame Material Resin Internal Lining Material Hydro-Lubricating Rubber Lubrication Type Water Lubricated Internal Diameter Ø A 25–60 mm External Diameter Ø B 1 1/2"–3 1/4" External Diameter in mm 38.10–82.55 mm Overall Length C 100–240 mm Available Variants 7
Bearing Size Selection
Select the appropriate Osculati resin shell cutless bearing according to three dimensions:
- Shaft (A): Internal bearing diameter corresponding to the propeller shaft, in millimetres.
- Shaft Tube (B): External bearing diameter, specified in inches.
- Length (C): Overall bearing length, in millimetres.
Check the shaft diameter, external mounting diameter and required bearing length against the existing stern tube or shaft support installation before ordering.
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