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Main-Catalog-Boat Mechanics & Marine Systems-Propeller Shaft & Stern Gear-Allpa Bronze Outer Propeller Shaft Bearing with Neoprene Bush and Mounting Flange for Ø20–60 mm Shafts

Allpa Bronze Outer Propeller Shaft Bearing with Neoprene Bush and Mounting Flange for Ø20–60 mm Shafts

Name: Allpa Bronze Outer Propeller Shaft Bearing with Neoprene Bush and Mounting Flange for Ø20–60 mm Shafts
SKU: ALP 562019

SKU: ALP 562019

ID 1416537

$ 342.78

1-2 weeks delivery time

Shaft Diameter:

Stern Tube Diameter:

Allpa bronze outer propeller shaft bearing with neoprene bearing bush, internal metric thread and mounting counterflange for marine stern tube installations. Available for propeller shaft diameters of Ø20, 25, 30, 35, 40, 45, 50 and 60 mm, with corresponding nominal stern tube diameters from Ø35 to Ø80 mm. Internal thread sizes range from M35×1.5 to M80×2. Each configuration features model-specific installation dimensions, including overall length A from 110 to 308 mm, adjustable dimension B from 45–55 to 80–110 mm, and flange dimensions for mounting. Supplied complete with mounting flange.

Description
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Allpa Bronze Outer Propeller Shaft Bearing with Neoprene Bush and Mounting Flange for Ø20–60 mm Shafts

The Allpa Bronze Outer Propeller Shaft Bearing is a bearing assembly designed for marine stern tube installations. It features a bronze housing, an integrated neoprene bearing bush, an internal threaded connection for the stern tube and a mounting counterflange.

The bronze housing provides the structural support for the neoprene bearing bush, while the internally threaded section allows connection to a compatible stern tube. The supplied mounting flange provides an additional installation connection.

Eight configurations are available for propeller shaft diameters from 20 to 60 mm, with corresponding nominal stern tube diameters from 35 to 80 mm.

Key Features

Bronze housing: Bearing housing manufactured from bronze for marine shaft installations.
Neoprene bearing bush: Integrated bearing component for the rotating propeller shaft.
Outer shaft bearing: Designed for installation within the vessel's stern tube arrangement.
Internal metric thread: Threaded housing connection for a compatible stern tube.
Mounting counterflange: Supplied complete with a mounting flange.
Multiple shaft sizes: Available for Ø20, Ø25, Ø30, Ø35, Ø40, Ø45, Ø50 and Ø60 mm propeller shafts.
Metric threaded connections: Internal threads from M35×1.5 to M80×2.
Model-specific dimensions: Installation lengths and mounting dimensions vary according to the selected configuration.

Technical Specifications

Parameter	Specification
Brand	Allpa
Product Type	Outer Propeller Shaft Bearing with Counterflange
Application	Marine Propeller Shaft and Stern Tube Systems
Housing Material	Bronze
Bearing Bush Material	Neoprene
Bearing Position	Outer Bearing
Stern Tube Connection	Internal Metric Thread
Mounting	Mounting Counterflange Included
Propeller Shaft Diameter (D)	Ø20–60 mm, Depending on Model
Nominal Stern Tube Diameter	Ø35–80 mm, Depending on Model
Internal Thread (F)	M35×1.5 to M80×2
Overall Length (A)	110–308 mm
Dimension B	45–55 to 80–110 mm, Depending on Model
Dimension C	20–60 mm
Dimension E	Ø42–96 mm
Dimension G	105–180 mm
Mounting Hole Diameter (H)	Ø5–10.5 mm
Dimension I	65–140 mm
Available Configurations	8

Available Models and Dimensions

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

Article Number	Shaft Ø (D)	Nominal Tube Ø	A	B	C	ØE	Thread (F)	G	ØH	I
562019	20	35	110	45–55	25	42	M35×1.5	105	5	65
562020	25	40	129	45–75	25	48	M40×1.5	110	7	75
562021	30	45	153	55–85	20	54	M45×1.5	125	7	85
562022	35	50	175	65–95	20	61	M50×1.5	150	8.5	95
562023	40	55	206	70–100	40	68	M55×2	165	10.5	110
562024	45	60	236	75–105	50	74	M60×2	175	10.5	112
562025	50	65	266	80–110	60	80	M65×2	180	10.5	120
562027	60	80	308	80–110	60	96	M80×2	175	10.5	140

Bronze Outer Bearing Housing

The outer bearing incorporates a bronze housing designed for installation in a marine propeller shaft system.

The housing contains a neoprene bearing bush and provides an internally threaded connection for attachment to the stern tube.

Neoprene Bearing Bush

The neoprene bearing bush is integrated into the bronze housing and provides a bearing surface for the rotating propeller shaft.

The bearing bush diameter corresponds to the selected propeller shaft size, ranging from 20 to 60 mm.

Internal Threaded Stern Tube Connection

The bearing housing incorporates an internal metric thread for connection to the stern tube. Eight threaded configurations are available:

M35×1.5: Ø20 mm shaft.
M40×1.5: Ø25 mm shaft.
M45×1.5: Ø30 mm shaft.
M50×1.5: Ø35 mm shaft.
M55×2: Ø40 mm shaft.
M60×2: Ø45 mm shaft.
M65×2: Ø50 mm shaft.
M80×2: Ø60 mm shaft.

The internal thread must correspond to the external threaded connection of the stern tube.

Mounting Counterflange

The bearing assembly is supplied complete with a mounting counterflange. The flange is used as part of the mechanical mounting arrangement for the stern tube installation.

The technical drawing identifies mounting dimensions G, H and I, which vary according to the selected bearing size.

Installation Dimensions

The technical drawing identifies the following dimensions:

A: Overall axial length of the bearing assembly.
B: Axial installation dimension with a specified range for each model.
C: Axial dimension of the outer bearing section.
D: Propeller shaft diameter.
E: Housing diameter indicated in the drawing.
F: Internal metric thread size.
G, H and I: Mounting dimensions shown in the flange drawing, with H representing the mounting hole diameter.

Refer to the model-specific dimensions when planning installation and checking the available mounting space.

Selection and Compatibility

Select the correct Allpa bronze outer bearing according to the propeller shaft diameter, stern tube connection and mounting dimensions.

562019: Ø20 mm shaft, Ø35 mm nominal stern tube, M35×1.5 thread.
562020: Ø25 mm shaft, Ø40 mm nominal stern tube, M40×1.5 thread.
562021: Ø30 mm shaft, Ø45 mm nominal stern tube, M45×1.5 thread.
562022: Ø35 mm shaft, Ø50 mm nominal stern tube, M50×1.5 thread.
562023: Ø40 mm shaft, Ø55 mm nominal stern tube, M55×2 thread.
562024: Ø45 mm shaft, Ø60 mm nominal stern tube, M60×2 thread.
562025: Ø50 mm shaft, Ø65 mm nominal stern tube, M65×2 thread.
562027: Ø60 mm shaft, Ø80 mm nominal stern tube, M80×2 thread.

Before ordering, verify the shaft diameter, stern tube thread, installation length and mounting flange dimensions against the existing propulsion shaft arrangement.