Allpa Bronze Self-Aligning Inner Shaft Bearing with Dual Lip Seal for Ø25–40 mm Propeller Shafts

Name: Allpa Bronze Self-Aligning Inner Shaft Bearing with Dual Lip Seal for Ø25–40 mm Propeller Shafts
SKU: ALP 9042540

SKU: ALP 9042540

ID 1416487

$ 437.25

1-2 weeks delivery time

Shaft Diameter:

Stern Tube Diameter:

Allpa bronze self-aligning inner bearing with a water-lubricated design, dual lip seal and mounting flange for marine propeller shaft installations. Available for Ø25, 30, 35 and 40 mm propeller shafts with corresponding stern tube diameters of Ø40, 45, 50 and 55 mm. Features a 12 mm hose connection and bronze construction. Overall dimension A is 184 or 189 mm, dimension B is 32 mm, and mounting flange diameter C is Ø80 or Ø90 mm, depending on the selected model.

Description
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Allpa Bronze Self-Aligning Inner Shaft Bearing with Dual Lip Seal for Ø25–40 mm Propeller Shafts

The Allpa Bronze Self-Aligning Inner Shaft Bearing with Dual Lip Seal is a water-lubricated bearing assembly designed for inboard marine propeller shaft installations. It combines a bronze self-aligning bearing, a double lip seal and a mounting flange for connection to the vessel's stern tube.

The self-aligning design allows the bearing assembly to accommodate shaft alignment within the installation, while the dual lip seal provides sealing around the propeller shaft.

Four configurations are available for propeller shaft diameters of 25, 30, 35 and 40 mm, with corresponding stern tube diameters of 40, 45, 50 and 55 mm.

Key Features

Bronze construction: Bearing components manufactured from bronze.
Self-aligning inner bearing: Designed to accommodate alignment within the propeller shaft installation.
Dual lip seal: Two sealing lips provide sealing around the rotating propeller shaft.
Water-lubricated design: Bearing assembly intended for water lubrication.
Mounting flange: Complete with a flange for installation on the stern tube.
12 mm hose connection: Integrated hose connection for the bearing assembly.
Four size combinations: Available for Ø25–40 mm shafts and Ø40–55 mm stern tubes.
Inboard application: Designed for marine propeller shaft installations.

Technical Specifications

Parameter	Specification
Brand	Allpa
Product Type	Self-Aligning Inner Shaft Bearing with Dual Lip Seal
Application	Inboard Marine Propeller Shaft Systems
Material	Bronze
Bearing Design	Self-Aligning
Lubrication	Water-Lubricated
Seal Type	Dual Lip Seal
Mounting	Mounting Flange Included
Propeller Shaft Diameter (D)	Ø25, Ø30, Ø35 or Ø40 mm
Stern Tube Diameter (E)	Ø40, Ø45, Ø50 or Ø55 mm
Hose Connection Diameter	12 mm
Dimension A	184 or 189 mm, Depending on Model
Dimension B	32 mm
Dimension C	Ø80 or Ø90 mm, Depending on Model
Available Configurations	4

Available Models and Dimensions

Article Number	Shaft Ø (D)	Stern Tube Ø (E)	A	B	C
9042540	25 mm	40 mm	184 mm	32 mm	Ø80 mm
9043045	30 mm	45 mm	184 mm	32 mm	Ø80 mm
9043550	35 mm	50 mm	189 mm	32 mm	Ø90 mm
9044055	40 mm	55 mm	189 mm	32 mm	Ø90 mm

Self-Aligning Bearing Design

The bronze inner bearing features a self-aligning construction intended for use in marine propeller shaft systems. This design allows the bearing assembly to accommodate shaft alignment within the installation.

The bearing is installed at the inner end of the stern tube and forms part of the propeller shaft support and sealing arrangement.

Dual Lip Sealing System

The assembly incorporates a double lip seal designed to provide sealing around the rotating propeller shaft.

The dual lip sealing arrangement is integrated with the bronze inner bearing, combining bearing and sealing functions in one assembly.

Water Lubrication and Hose Connection

The bearing assembly is designed for water lubrication and features a 12 mm hose connection.

The hose connection is incorporated into the bronze housing and is available on all four configurations.

Mounting Flange

The bearing assembly is supplied complete with a mounting flange for attachment to the stern tube.

Two flange diameter configurations are specified:

Ø80 mm: For 25 and 30 mm shaft models.
Ø90 mm: For 35 and 40 mm shaft models.

Selection and Installation Dimensions

Select the correct bearing according to both the propeller shaft diameter and stern tube diameter:

9042540: Ø25 mm shaft and Ø40 mm stern tube.
9043045: Ø30 mm shaft and Ø45 mm stern tube.
9043550: Ø35 mm shaft and Ø50 mm stern tube.
9044055: Ø40 mm shaft and Ø55 mm stern tube.

Before ordering, verify the propeller shaft diameter, stern tube diameter, mounting flange dimensions and available installation space.