Rudder stock bearings support the rudder's weight and allow smooth rotation for steering. They are critical for marine propulsion systems, ensuring precise vessel maneuverability. These bearings must withstand high loads and harsh marine environments.

Size: Typically ranges from 100 mm to 1000 mm in diameter, depending on vessel size.

Grade: High-grade alloy steel or stainless steel (e.g., ASTM A572, AISI 316).

Viscosity: Lubrication oil viscosity ranges from ISO VG 68 to VG 150.

Buoyancy: Not applicable (rudder stock bearings are non-buoyant components).

Material: Common materials include bronze, white metal (Babbitt), or composite polymers.

Load Capacity: Designed for radial and axial loads up to 500 kN, depending on size.

Operating Temperature: -20°C to +80°C, with special grades for extreme conditions.

Corrosion Resistance: High, especially in seawater applications (stainless steel or coated alloys).

Lubrication: Grease or oil-lubricated, with sealed or open designs.

Maintenance: Requires periodic inspection and relubrication.

Rudder Stock Bearings and Marine Propulsion products typically comply with maritime standards such as ISO, ABS, DNV, or other classification society requirements. For specific compliance details, refer to the product documentation or manufacturer specifications.