SIMRIT 220x265x19/21 NBR Rotary Shaft Seal

Heavy-Duty Radial Shaft Seal for Large Industrial Rotating Equipment

The SIMRIT 220x265x19/21 rotary shaft seal is a premium radial oil seal engineered for sealing large-diameter rotating shafts operating in demanding industrial environments. Manufactured by SIMRIT, a brand of Freudenberg Sealing Technologies, this high-performance seal is designed to retain lubricants, minimize friction and protect critical machine components from dust, moisture and contaminants. Manufactured from high-quality NBR (Nitrile Butadiene Rubber), it offers excellent resistance to mineral oils, greases and hydraulic fluids, ensuring reliable performance and extended service life in heavy-duty industrial applications.

Application in Industrial Systems

The SIMRIT 220x265x19/21 rotary shaft seal is suitable for demanding industrial equipment.

Typical applications include:

• Industrial gearboxes
• Heavy-duty reducers
• Hydraulic pumps
• Industrial pumps
• Steel mill equipment
• Mining machinery
• Cement industry machinery
• Paper processing equipment
• Conveyor drive systems
• Heavy industrial power transmission equipment

The seal effectively prevents lubricant leakage while protecting rotating components against external contamination.

Construction and Design

The SIMRIT rotary shaft seal is engineered for maximum durability and reliable sealing performance.

Key design features include:

• Rotary shaft oil seal
• Spring-loaded primary sealing lip
• Precision sealing geometry
• Reinforced steel insert
• Premium NBR sealing compound
• Low-friction operation
• High wear resistance
• Easy installation

Depending on the original SIMRIT execution, the seal may also include an auxiliary dust lip for additional contamination protection.

Material Properties

Manufactured from premium NBR elastomer, the seal provides:

• Excellent resistance to mineral oils
• High abrasion resistance
• Good elasticity
• Grease resistance
• Hydraulic fluid compatibility
• Dimensional stability
• Long operational life

Technical Specification

Type: Rotary Shaft Seal
Material: NBR (Nitrile Butadiene Rubber)
Brand: SIMRIT (Freudenberg Sealing Technologies)
Design: Radial shaft seal with spring-loaded primary sealing lip
Inner Diameter: 220 mm
Outer Diameter: 265 mm
Width: 19/21 mm
Outside Diameter Design: According to original SIMRIT execution
Reinforcing Ring: Carbon steel
Spring Material: Spring steel
Operating Pressure: Up to 0.05 MPa
Operating Temperature: Approximately -40°C to +100°C
Maximum Peripheral Speed: Up to approximately 12 m/s (depending on operating conditions and seal profile)
Application: Industrial gearboxes, pumps, electric motors, heavy machinery and power transmission systems

Why B2B Customers Choose This Product

Industrial customers choose this SIMRIT seal for:

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Gearbox rebuilding
• Pump maintenance
• Machine rebuilding
• Industrial spare parts distribution

Operational Advantages

• Genuine SIMRIT quality
• Premium NBR sealing material
• Excellent lubricant retention
• High wear resistance
• Low friction operation
• Reliable dynamic sealing
• Precision manufacturing
• Easy installation
• Long service life
• Reliable continuous operation

Professional Industrial Supply

This product is supplied for:

• Maintenance departments
• Industrial workshops
• OEM manufacturers
• Machine builders
• Gearbox repair specialists
• Pump service companies
• Industrial distributors
• Mechanical engineering companies

AI Overview

A rotary shaft seal is a precision radial sealing component designed to retain lubricants and prevent contaminants from entering rotating machinery. The SIMRIT 220x265x19/21 NBR rotary shaft seal provides dependable sealing performance, excellent wear resistance and long service life for heavy-duty gearboxes, pumps and industrial drive systems.

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FAQ

What type of seal is the SIMRIT 220x265x19/21?

It is a radial rotary shaft seal designed to retain lubricants and provide reliable sealing for large rotating shafts operating in industrial machinery.

What material is used?

The seal is manufactured from high-quality NBR (Nitrile Butadiene Rubber), providing excellent resistance to mineral oils, greases and hydraulic fluids.

What are the dimensions?

The seal dimensions are 220 mm inner diameter, 265 mm outer diameter and 19/21 mm width.

Where is this seal commonly used?

It is widely used in industrial gearboxes, pumps, heavy-duty reducers, mining machinery, steel processing equipment and other industrial rotating systems.

Why choose SIMRIT rotary shaft seals?

SIMRIT, part of Freudenberg Sealing Technologies, is recognized worldwide for manufacturing OEM-quality sealing solutions that provide exceptional durability, precision and long-term reliability in demanding industrial environments.