Premium Quality Railway Non-Drive End Covers: Durable, Corrosion-Resistant Solutions for Global Rail Systems

Overview of Railway Non-Drive End Covers

Railway non-drive end covers are critical sealing and protective components in railway vehicle bogie systems. They are designed specifically for the non-drive end (non-gearbox) bearing compartment. They utilize a high-precision metal seal structure, combined with wear-resistant materials and advanced surface treatment processes, to provide dustproof, waterproof, and corrosion-resistant features. Suitable for all types of passenger trains, freight trains, and urban rail transit vehicles, their design balances strength, lightweight design, and ease of maintenance, meeting the railway industry’s stringent requirements for reliability, durability, and environmental adaptability.

Technical Parameters of Railway Non-Drive End Covers

Parameters	Technical Specifications
Material	Gray cast iron (HT250/HHigh-strength ductile iron (QT450-10) or aircraft-grade aluminum alloy (6061-T6), excellent impact resistance
Applicable Bearing Types	Cylindrical roller bearings, spherical roller bearings (bore diameter range: Φ120mm-Φ320mm)
Seal Structure	Dual-stage metal labyrinth seal (stepped barrier design) + dust cover, dust and water resistance rating up to IP65
Operating Temperature Range	-40°C to +200°C (extended to +250°C for special conditions)
Seal Type	Mechanical seal, O-ring seal, packing seal (optional depending on operating conditions)
Seal Groove	Dacromet Coating (Salt Spray Resistance ≥ 1000 hours)
Mounting	Flange Bolt Connection (M12-M20, Torque Compliant with ISO 898-1)
Weight Range	8kg-35kg (Depending on model and material)
Operating Temperature Range	-40°C to +150°C (Suitable for both normal and short-term extreme temperatures)
Fatigue Life	≥ 12 million km (Tested in accordance with UIC 615-4)

Features of Railway Non-Drive End Covers

High-efficiency metal seals, stable and reliable

• The dual-stage labyrinth seal structure effectively prevents external impurities from entering the bearing chamber through airflow blocking and dust settling, ensuring stable sealing performance and requiring no regular adjustment.
• The dust cover design further enhances protection against large particles and reduces the risk of bearing wear.

Material and process optimization

• The ductile iron model undergoes austempering (ADI) treatment, achieving a tensile strength of 900 MPa, making it suitable for heavy-duty freight trains.
• The aluminum alloy model utilizes a 6061-T6 forging process, reducing weight by 30% compared to cast iron while maintaining structural rigidity and improving train energy efficiency.

Corrosion-resistant surface treatment

• Dacromet coating provides excellent salt spray and chemical resistance, making it suitable for coastal, humid, or snowy environments.
• Black phosphate treatment enhances surface hardness and reduces the risk of scratching during installation.

Standardization and compatibility

• The flange interface and bolt hole positions conform to international standards (such as DIN and ISO), allowing direct replacement of end covers on most existing vehicle models, reducing repair time.
• Supports customized dimensions and sealing levels to meet different bogie design requirements.

Application of Railway Non-Drive End Covers

Passenger Trains

• Applied to high-speed EMUs (such as the CRH series), intercity trains, and subway vehicles, ensuring bearing reliability at speeds below 250 km/h.

Freight Trains

• Adapted to China’s HXD series and the US GE ES44AC electric and diesel locomotives, they withstand axle loads up to 35 tons and reduce failure rates during heavy-load transport.

Urban Rail Transit

• Applied to subway and light rail vehicle bogies, they adapt to frequent starting and stopping operations and tight curves, reducing maintenance frequency.

Repair and Upgrade Market

• As a standard component in bogie overhaul kits, they provide OEM-level performance, are compatible with existing vehicle specifications, and reduce lifecycle costs.

Package of Railway Non-Drive End Covers

Polybag + Carton box+ Wooden case/Pallet, according to customer’s request

Company Profile

Luoyang Fonyo Heavy Industries Co., Ltd. was founded in 1998, covers an area of 72,600㎡, with more than 300 employees, 32 technicians, including 5 senior engineers, 11 assistant engineers, and 16 technicians. It has been rated as Luoyang Engineering Technology Center, Luoyang Technology R&D Center, and National High-tech Enterprise for many times.
Our production capacity is 30,000 tons per year. Currently, we mainly produce cast steel, cast iron (gray iron, ductile iron, etc.), processing of finished product and component assembly for locomotive,railcar,high-speed trains, mining equipment,wind power,etc.Our products have been exported to Russia, the United States, Germany, Argentina, Japan, France, South Africa,Italy and other countries.

FAQS

Q1: Are you a manufacturer or trading company?
A: We are a manufacturer. Our company was founded in 1998, with nearly 30 years in casting industry, a total area of 72,600㎡, with a factory building area of 51,000㎡.
Q2. What are your main products?
A: We primarily focus on steel casting, iron casting, finished product machining, and component assembly production for locomotive, railcar, high-speed trains, mining equipment, wind power,etc.
Q3: How precision can you produce casting parts?
A: We have the capability of producing casting parts with different casting processes. The production is strictly comply with ISO 9001, ISO 14001 and ISO45001,EN15085, IRIS.
Q4. Can you produce according to the samples?
 Yes, we can produce by your samples or technical drawings. We can build drawings for you after we get your samples too.
Q5: How do you do Quality Control before delivery?
A: Quality inspection is a very important factor to guarantee the quality of steel casting parts. We follow 3 times of inspection during the whole production process. And we will provide material testing report, dimensional testing report, and mechanical properties testing report to our clients before delivery.

It you are interested in any products, please feel free to contact us.
Contact: Stella Liu
Email:sales@railwaypart.com
WhatsApp: +86-152-3615-7103