ManeCraft Deep Sea Seal Maintenance-Free Propeller Shaft Seals MC-2–MC-16

Name: ManeCraft Deep Sea Seal Maintenance-Free Propeller Shaft Seals MC-2–MC-16
SKU: CN MC-2

SKU: CN MC-2

ID 1415206

$ 1,178.75

1-2 weeks delivery time

Shaft Diameter:

2 1/4"
65
25-30
30-35
35-41
43-46
46-51

Stern Tube Diameter:

35-43
43-51
51-60
60-70
70-80
90-100
3 1/2"

Length, mm:

131
137.32
137.50

ManeCraft Deep Sea Seals replace traditional propeller shaft packed glands without using sealing rings that wear grooves into the shaft. Featuring an integrated emergency seal, the range covers shaft diameters from 25 to 65 mm, mounting diameters from 35 to 100 mm and maximum shaft speeds from 1500 to 2950 rpm. Available in 10 configurations.

Description
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ManeCraft Deep Sea Seal Maintenance-Free Propeller Shaft Seals MC-2–MC-16

ManeCraft Deep Sea Seals are designed to replace traditional packed glands in marine propeller shaft installations. Unlike conventional stuffing box arrangements, the seals do not use sealing rings that rub directly against the propeller shaft, preventing groove formation caused by this type of contact.

The range includes 10 configurations covering different shaft diameters, mounting diameters, installation lengths and maximum permissible shaft speeds.

Alternative to Traditional Shaft Packing

ManeCraft Deep Sea Seals replace conventional propeller shaft packing glands without requiring regular repacking or packing adjustments.

The sealing arrangement is designed for straightforward installation and operation without routine seal maintenance.

No Shaft Contact from Traditional Packing Rings

The ManeCraft sealing system does not employ conventional packing rings that seal directly against the rotating propeller shaft.

This design avoids the shaft grooving associated with traditional packing contact. It also allows installation as a replacement for an existing packing gland without necessarily replacing a shaft that has previously developed wear grooves.

Integrated Emergency Seal

The ManeCraft Deep Sea Seal incorporates a built-in emergency sealing arrangement.

If external circumstances cause a problem in the propulsion shaft system and the primary seal begins to leak, the integrated emergency seal provides an immediate alternative sealing solution.

Installation and Maintenance

The sealing system is designed for straightforward installation and does not require traditional gland packing adjustments.

Regular checks of the vessel's shaft installation, seacocks, hoses and other below-waterline fittings should still be carried out as part of normal vessel maintenance.

Available Models and Dimensions

The following table lists all 10 ManeCraft Deep Sea Seal configurations according to the supplied catalogue.

Model	Shaft Diameter	Mounting Diameter	Length	Max. Shaft Speed
MC-2	25–30 mm	35–43 mm	131 mm	2950 rpm
MC-3	25–30 mm	43–51 mm	131 mm	2950 rpm
MC-4	30–35 mm	43–51 mm	131 mm	2850 rpm
MC-5	30–35 mm	51–60 mm	131 mm	2850 rpm
MC-6	35–41 mm	51–60 mm	131 mm	2750 rpm
MC-7	35–41 mm	60–70 mm	131 mm	2750 rpm
MC-8	43–46 mm	70–80 mm	131 mm	2600 rpm
MC-9	46–51 mm	70–80 mm	131 mm	2600 rpm
MC-11	2 1/4" (57.15 mm)	3 1/2" (88.90 mm)	137.32 mm	1550 rpm
MC-16	65 mm	90–100 mm	137.50 mm	1500 rpm

Key Features

Brand: ManeCraft.
Product Series: Deep Sea Seal.
Product Type: Marine Propeller Shaft Seal.
Application: Replacement for Traditional Propeller Shaft Packed Glands.
Sealing Design: No Conventional Packing Rings Wearing Against the Shaft.
Emergency Protection: Integrated Emergency Seal.
Maintenance: No Routine Packing or Adjustment Required.
Available Shaft Sizes: Metric and Imperial Configurations.
Maximum Shaft Speed: 1500–2950 rpm, Depending on Model.
Available Configurations: 10.

Technical Specifications

Manufacturer	ManeCraft
Series	Deep Sea Seal
Product Type	Propeller Shaft Seal
Available Models	MC-2, MC-3, MC-4, MC-5, MC-6, MC-7, MC-8, MC-9, MC-11, MC-16
Shaft Diameter	25–65 mm, Depending on Model
Mounting Diameter	35–100 mm, Depending on Model
Overall Length	131 / 137.32 / 137.50 mm
Maximum Shaft Speed	1500–2950 rpm
Integrated Emergency Seal	Yes
Traditional Packing Rings	Not Required
Available Variants	10

Deep Sea Seal Selection

Select the appropriate ManeCraft Deep Sea Seal using the following technical parameters:

Shaft Diameter: Required propeller shaft diameter or specified diameter range.
Mounting Diameter: External mounting connection diameter or corresponding diameter range.
Overall Length: Axial length of the seal assembly.
Maximum Shaft Speed: Permissible shaft speed for the selected model.

Some models share the same shaft diameter range but differ in their mounting diameter ranges. Select the configuration that matches the existing shaft installation and verify that the operating shaft speed is within the specified limit.