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Main-Catalog-Boat Mechanics & Marine Systems-Propeller Shaft & Stern Gear-Allpa PSO Bronze Flexible Inner Propeller Shaft Bearing with Baseplate for Ø25–50 mm Shafts

Allpa PSO Bronze Flexible Inner Propeller Shaft Bearing with Baseplate for Ø25–50 mm Shafts

Name: Allpa PSO Bronze Flexible Inner Propeller Shaft Bearing with Baseplate for Ø25–50 mm Shafts
SKU: ALP 464225

SKU: ALP 464225

ID 1416508

$ 487.09

1-2 weeks delivery time

Shaft Diameter:

Allpa PSO bronze flexible inner propeller shaft bearing with a baseplate and fixed installation angle for inboard marine propulsion systems. Manufactured entirely from bronze and designed for water-lubricated operation. Available for propeller shaft diameters of Ø25, 30, 35, 40, 45 and 50 mm, with installation angles of 9–17°, 11–17° or 11–15°, depending on the selected model. Supplied with an integrated mounting baseplate. Dimensions B, C, D, E, F, G and H vary according to shaft diameter and are specified for each configuration.

Description
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Allpa PSO Bronze Flexible Inner Propeller Shaft Bearing with Baseplate for Ø25–50 mm Shafts

The Allpa PSO Bronze Flexible Inner Propeller Shaft Bearing is a water-lubricated inner bearing assembly designed for inboard marine propulsion systems. Manufactured entirely from bronze, it features an integrated baseplate and a fixed mounting bracket for installation at an angle.

The PSO bearing is available for propeller shaft diameters from 25 to 50 mm. Six configurations are offered, with different installation angle ranges and dimensions to match the shaft arrangement.

The baseplate provides a mounting surface for the bearing assembly, while the angled installation arrangement accommodates the specified propeller shaft inclination.

Key Features

Bronze construction: Bearing assembly manufactured entirely from bronze.
Flexible inner bearing: Designed for inboard propeller shaft installations.
Water-lubricated design: Intended for operation with water lubrication.
Integrated baseplate: Complete with a mounting plate for installation.
Fixed mounting bracket: Angled mounting arrangement for the propeller shaft installation.
Model-specific installation angles: Available with specified ranges of 9–17°, 11–17° and 11–15°.
Six shaft sizes: Available for Ø25, Ø30, Ø35, Ø40, Ø45 and Ø50 mm shafts.
Dimensional configurations: Different mounting dimensions depending on shaft diameter.

Technical Specifications

Parameter	Specification
Brand	Allpa
Series	PSO
Product Type	Flexible Inner Propeller Shaft Bearing with Baseplate
Application	Inboard Marine Propeller Shaft Systems
Material	Bronze
Lubrication	Water-Lubricated
Mounting	Integrated Baseplate with Fixed Mounting Bracket
Propeller Shaft Diameter (A)	Ø25, Ø30, Ø35, Ø40, Ø45 or Ø50 mm
Installation Angle (a°)	9–17°, 11–17° or 11–15°, Depending on Model
Dimension B	460, 500 or 555 mm
Dimension C	90, 110 or 130 mm
Dimension D	20, 27 or 35 mm
Dimension E	48, 60 or 66 mm
Dimension F	77, 86 or 103 mm
Dimension G	45, 103 or 75 mm
Dimension H	5 mm
Available Configurations	6

Available Models and Dimensions

The following dimensions correspond to the A, B, C, D, E, F, G and H designations shown in the PSO technical drawing. All linear dimensions are expressed in millimetres.

Article Number	Shaft Ø (A)	Angle (a°)	B	C	D	E	F	G	H
464225	25	9–17°	460	90	20	48	77	45	5
464230	30	9–17°	460	90	20	48	77	45	5
464235	35	11–17°	500	110	27	60	86	103	5
464240	40	11–17°	500	110	27	60	86	103	5
464245	45	11–15°	555	130	35	66	103	75	5
464250	50	11–15°	555	130	35	66	103	75	5

Bronze Bearing Construction

The PSO inner bearing assembly is manufactured from bronze and designed for installation in marine propeller shaft systems.

The bearing provides support for the shaft and forms part of the vessel's inboard shaft arrangement.

Water-Lubricated Operation

The PSO bearing is designed for water-lubricated operation. The technical drawing identifies a water connection at the bearing assembly.

Installation must provide the appropriate water supply arrangement for the bearing.

Integrated Baseplate and Fixed Mounting Bracket

The bearing assembly includes a mounting baseplate and fixed bracket for attachment to the vessel's supporting structure.

The baseplate and mounting arrangement allow installation at the specified propeller shaft inclination. The available angle range depends on the selected bearing size.

Installation Angles

Three installation angle ranges are specified for the PSO series:

9–17°: For Ø25 and Ø30 mm shafts.
11–17°: For Ø35 and Ø40 mm shafts.
11–15°: For Ø45 and Ø50 mm shafts.

The correct model must be selected according to the propeller shaft diameter and the required installation angle.

Mounting Dimensions

The PSO range includes three dimensional groups:

Ø25–30 mm shafts: B = 460 mm, C = 90 mm, D = 20 mm, E = 48 mm, F = 77 mm, G = 45 mm and H = 5 mm.
Ø35–40 mm shafts: B = 500 mm, C = 110 mm, D = 27 mm, E = 60 mm, F = 86 mm, G = 103 mm and H = 5 mm.
Ø45–50 mm shafts: B = 555 mm, C = 130 mm, D = 35 mm, E = 66 mm, F = 103 mm, G = 75 mm and H = 5 mm.

Selection and Compatibility

Select the correct Allpa PSO inner bearing according to the propeller shaft diameter, required installation angle and mounting dimensions.

464225: Ø25 mm shaft, installation angle 9–17°.
464230: Ø30 mm shaft, installation angle 9–17°.
464235: Ø35 mm shaft, installation angle 11–17°.
464240: Ø40 mm shaft, installation angle 11–17°.
464245: Ø45 mm shaft, installation angle 11–15°.
464250: Ø50 mm shaft, installation angle 11–15°.

Before ordering, verify the shaft diameter, shaft inclination, baseplate installation dimensions and available mounting space using the dimensional drawing.