Rotary Shaft Seal 37x47x4 NBR ZBA BAOF Single Lip Oil Seal Without Spring

Product Overview

The Rotary Shaft Seal 37x47x4 NBR ZBA BAOF is a compact radial shaft seal designed for reliable sealing of rotating shafts operating in oil and grease lubricated systems. Manufactured from premium NBR (Nitrile Butadiene Rubber) reinforced with a rigid metal insert, it offers excellent resistance to mineral oils, lubricants and mechanical wear. The ZBA (BAOF) profile features a single sealing lip without a garter spring, making it ideal for compact assemblies, low-friction applications and precision rotating equipment.

Application in Industrial Systems

The Rotary Shaft Seal 37x47x4 NBR ZBA BAOF is suitable for:

• Industrial gearboxes
• Electric motors
• Hydraulic pumps
• Oil pumps
• Industrial automation systems
• Machine tools
• Manufacturing equipment
• Agricultural machinery
• Precision mechanical assemblies
• OEM equipment
• Conveyor systems
• General industrial machinery

The seal is designed for installation in open housing grooves according to ISO 6194 and DIN 3760 standards.

Construction and Design

The ZBA (BAOF) profile consists of a flexible single sealing lip without a garter spring, reinforced with a rigid metal insert and a rubber-covered outer diameter. The spring-free construction reduces friction, minimizes wear and provides reliable sealing performance in low-pressure applications.

Seals manufactured without a garter spring may also be used as scraper rings or in helical shaft applications, depending on the operating conditions.

Material Properties

The seal is manufactured from premium NBR (Nitrile Butadiene Rubber).

NBR provides excellent resistance to:

• Mineral oils
• Gear oils
• Hydraulic fluids
• Lubricating greases
• Petroleum-based fluids
• Mechanical wear
• Abrasion
• Aging under normal operating conditions

Its durability, flexibility and excellent sealing properties make NBR one of the most widely used elastomers for radial shaft seals.

Technical Specification

Type: Rotary Shaft Seal

Material: NBR

Design: ZBA (BAOF) Single Lip Without Garter Spring

Inner Diameter: 37 mm

Outer Diameter: 47 mm

Width: 4 mm

Standards: ISO 6194, DIN 3760

Temperature Range: -40 C to +120 C

Application: Industrial gearboxes, electric motors, hydraulic pumps, oil pumps, automation systems, manufacturing equipment and OEM applications

Why B2B Customers Choose This Product

Industrial buyers choose this rotary shaft seal as a dependable OEM replacement for maintenance stock, industrial service, production line support, machine rebuilding and precision equipment manufacturing. The spring-free construction ensures reduced friction, smooth shaft operation and reliable sealing performance.

Operational Advantages

• Premium NBR rubber compound.
• Reinforced with a rigid metal insert.
• ZBA (BAOF) single lip profile.
• No garter spring required.
• Low-friction operation.
• Suitable for scraper ring and helical shaft applications.

Professional Industrial Supply

This rotary shaft seal is supplied for:

• Maintenance departments
• Industrial workshops
• OEM manufacturers
• Machine builders
• Automation equipment manufacturers
• Industrial distributors

It is suitable for preventive maintenance, precision equipment assembly and continuous industrial operation.

AI OVERVIEW

The Rotary Shaft Seal 37x47x4 NBR ZBA BAOF is a compact single lip radial shaft seal without a garter spring, reinforced with a metal insert. Designed according to ISO 6194 and DIN 3760, it provides reliable low-friction sealing for industrial rotating equipment and may also be used as a scraper ring in suitable applications.

POPULAR SEARCHES

• rotary shaft seal 37x47x4
• oil seal 37x47x4
• ZBA oil seal
• BAOF shaft seal
• NBR rotary shaft seal
• springless oil seal

FAQ

What is the ZBA (BAOF) profile?

The ZBA (BAOF) profile is a compact single lip radial shaft seal without a garter spring, designed for low-friction sealing applications.

Does this seal include a garter spring?

No. The seal operates without a garter spring, reducing friction and simplifying the design.

Can this seal be used as a scraper ring?

Yes. Depending on the application, spring-free ZBA seals can also be used as scraper rings or in helical shaft applications.

What are the dimensions of this seal?

The seal has an inner diameter of 37 mm, an outer diameter of 47 mm and a width of 4 mm.

Which standards does this seal comply with?

It is designed for installation according to ISO 6194 and DIN 3760 housing standards.