SKU:
Osculati-52.330.25
ID
1415150
$ 96.15
1-2 weeks delivery time
Shaft Diameter:
- 25
- 30
- 35
- 40
- 45
- 50
Osculati Rubber Propeller Shaft Seal Version A is designed to protect marine propeller shaft installations against water seepage. Manufactured from special rubber resistant to salt water and lubricating grease, the seal features a brass hose adaptor for external water lubrication and a separate greasing aperture with a brass cap. The 52.330 series includes 11 configurations for metric and imperial shaft diameters from 25 to 50.8 mm, with stuffing box mounting diameters from 43 to 70 mm. The seals normally operate below the waterline with water lubrication and cooling; installations at or above the waterline require an external cooling water source. Each kit includes the rubber stuffing box, an AISI 316 stainless steel clamp, a tube of specific shaft lubricant and installation instructions. A brass closing cap is supplied when the external water hose connection is not used.
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Osculati Rubber Propeller Shaft Seal Version A with Water Lubrication Ø25–50.8 mm
Osculati Rubber Propeller Shaft Seal Version A is designed to provide protection against water seepage in marine propeller shaft installations. Manufactured from a special rubber compound resistant to salt water and lubricating grease, the seal combines a compact stuffing box construction with connections for external water lubrication and grease application.
The Osculati 52.330 series includes 11 configurations for metric and imperial propeller shaft diameters from 25 to 50.8 mm, with stuffing box mounting diameters from 43 to 70 mm.
Version A – Water Lubrication and Greasing Connections
Version A features two separate connections:
- Brass Hose Adaptor: Connection for external water lubrication.
- Greasing Aperture: Opening fitted with a brass cap for grease application.
A brass closing cap is supplied for the water connection when the hose adaptor is not used.
Saltwater and Grease-Resistant Rubber
The stuffing box is manufactured from a special type of rubber resistant to salt water and lubricating grease.
The sealing arrangement is designed to provide long-lasting protection against water seepage and requires low maintenance when correctly treated.
Water Lubrication and Cooling
The stuffing box normally operates below the waterline, where lubrication and cooling are provided by water.
For installations operating at or above the waterline, the manufacturer specifies that an external cooling water source is required.
AISI 316 Stainless Steel Clamp
The seal is supplied with an AISI 316 stainless steel clamp for securing the stuffing box in the corresponding shaft installation.
Kit Contents
Each Osculati Version A kit includes:
- Rubber propeller shaft stuffing box.
- AISI 316 stainless steel clamp.
- Brass hose adaptor for external water lubrication.
- Brass closing cap for the water connection.
- Greasing aperture with brass cap.
- Tube of specific shaft line lubricant.
- Installation instructions.
Available Models and Dimensions
The following table lists all 11 Version A configurations according to the Osculati technical catalogue.
Osculati Code Shaft Diameter (mm) Stuffing Box Case Ø (mm) 52.330.25 25 43 52.330.26 25.4 (1") 44 52.330.30 30 49 52.330.31 31.8 (1 1/4") 52 52.330.35 35 55 52.330.36 38.1 (1 1/2") 58 52.330.40 40 60 52.330.41 44.5 (1 3/4") 64 52.330.45 45 65 52.330.46 50.8 (2") 70 52.330.50 50 70
Key Features
- Brand: Osculati.
- Series: 52.330.
- Version: A.
- Product Type: Rubber Propeller Shaft Seal.
- Material: Saltwater and Grease-Resistant Rubber.
- Clamp Material: AISI 316 Stainless Steel.
- Water Lubrication Connection: Brass Hose Adaptor.
- Greasing Connection: Aperture with Brass Cap.
- Lubrication and Cooling: Water.
- Shaft Diameter Range: 25–50.8 mm.
- Stuffing Box Mounting Diameter: 43–70 mm.
- Available Configurations: 11.
Technical Specifications
Manufacturer Osculati Product Type Marine Rubber Stuffing Box Series 52.330 Version A Sealing Material Saltwater and Grease-Resistant Rubber Clamp Material AISI 316 Stainless Steel Water Lubrication Connection Brass Hose Adaptor Greasing Aperture With Brass Cap Lubrication and Cooling Water Shaft Diameter 25–50.8 mm Stuffing Box Case Diameter 43–70 mm Available Variants 11
Installation and Operating Conditions
The stuffing box normally operates below the waterline, using water for lubrication and cooling.
When installed at or above the waterline, an external cooling water source is required according to the manufacturer's instructions.
Shaft Seal Selection
Select the appropriate Osculati Version A seal according to the propeller shaft diameter.
The range includes metric and imperial shaft sizes. The stuffing box mounting diameter is determined by the selected shaft size.
Check the shaft diameter and the corresponding mounting diameter before ordering.
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