ZF 634301829 – Shaft Seal 70x90x12 mm for Marine Gearboxes and Engines

ID 1232826

$ 6.66

1-2 weeks delivery time

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The ZF 634301829 is a 70×90×12 mm shaft seal made from NBR or FKM for marine engines and gearboxes. Withstands pressures up to 30 bar and temperatures from -40°C to +150°C. Provides reliable sealing against oil, water, and contaminants in harsh marine conditions.

Description
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ZF 634301829 – Shaft Seal 70x90x12 mm for Marine Gearboxes and Engines

The ZF 634301829 Shaft Seal is a high-performance sealing solution designed for marine engines, gearboxes, and propulsion systems. Built from durable Nitrile rubber (NBR) or optional Fluoroelastomer (FKM), this seal offers exceptional resistance to oil, water, marine fluids, UV exposure, and high temperatures. Its robust construction ensures secure fluid retention and protection against contamination, helping extend the service life of critical mechanical components.

Key Features:

Radial shaft seal designed for ZF marine mechanical systems
Made from high-quality NBR or FKM for extended durability
Seals effectively against oil, water, and external contaminants
Handles pressure up to 30 bar (435 psi) and high-speed rotation
Withstands extreme temperatures from -40°C to +150°C
UV-resistant and chemically stable for harsh marine conditions
Press-fit design for quick and secure installation
Integrated sealing lip for enhanced pressure retention

Specifications:

Part Number	ZF 634301829
Seal Type	Radial shaft seal, single-lip
Material	Nitrile rubber (NBR) or Fluoroelastomer (FKM)
Inner Diameter	70 mm
Outer Diameter	90 mm
Thickness	12 mm
Operating Pressure	Up to 30 bar (435 psi)
Temperature Range	-40°C to +150°C
Maximum Speed	4,000 RPM
Oil Compatibility	Mineral and synthetic oils
Environmental Resistance	UV, saltwater, oil, and heat
Hardness	70 Shore A
Installation Type	Press-fit
Surface Finish	Polished sealing surface
Weight	0.3 kg

Compatibility and Application:

This shaft seal is ideal for use in marine engines, gearboxes, propeller shafts, and other mechanical systems exposed to high pressure and temperature. It is engineered to perform reliably in environments with oil, saltwater, and UV exposure, making it suitable for yachts, commercial vessels, and other marine applications. The tight sealing prevents leakage and contamination, preserving component integrity and reducing maintenance needs.

Benefits:

Reliable sealing performance in high-pressure marine systems
Protects internal components from oil loss and external contaminants
Reduces wear, corrosion, and maintenance frequency
Suitable for long-term use in harsh marine environments
Ensures stable system performance under thermal and mechanical stress
Quick to install with a secure press-fit design