45x52x4 ZBL - Single Lip Rotary Shaft Seal Without Spring

Application of the 45x52x4 ZBL Shaft Seal

The 45x52x4 ZBL rotary shaft seal is a single lip oil seal without a spring, designed for rotary sealing applications in industrial machinery and mechanical systems. It is used to seal rotating shafts and prevent leakage of lubricants such as oils and greases while limiting the ingress of contaminants. Thanks to its compact design and small axial width, this seal is suitable for installations with limited mounting space. Typical applications include gearboxes, drives, motors, and general industrial equipment.

Key Advantages and Operating Characteristics

The 45x52x4 ZBL shaft seal offers high durability and stable sealing performance under standard operating conditions. The springless design reduces friction between the sealing lip and the shaft, which helps minimize wear and supports smooth operation. A metal reinforcing case ensures secure seating in the housing and dimensional stability during operation. The single lip construction is ideal for applications where a dust lip is not required and simplicity, reliability, and efficiency are essential.

Technical Specifications

• Product type: Rotary shaft seal, oil seal
• Designation: ZBL
• Shaft diameter: 45 mm
• Housing diameter: 52 mm
• Width: 4 mm
• Design: Single lip, without spring
• Application: Technical sealing, industrial applications

Meta title

45x52x4 ZBL - Single Lip Rotary Shaft Seal

Meta description

45x52x4 ZBL single lip rotary shaft seal without spring. Reliable oil sealing for industrial shaft applications.

Main Description

The 45x52x4 ZBL is a technical rotary shaft seal developed to provide reliable sealing between rotating and stationary components. As a single lip oil seal, it is widely used in industrial applications where resistance to oils and greases and consistent sealing performance are required. The seal effectively retains lubricants and supports clean operation of mechanical systems under moderate rotational speeds.

The absence of a spring reduces radial load on the shaft, resulting in lower friction and smoother operation. The metal outer case reinforces the seal structure and ensures a precise fit in the housing bore. The ZBL design can also be used as a wiping or scraping seal in simpler mechanical assemblies.

This rotary shaft seal is a practical choice for B2B customers involved in machine maintenance, production, and equipment refurbishment, where standard dimensions, reliability, and immediate availability are key selection criteria.

FAQ - Frequently Asked Questions

What is a ZBL shaft seal?
It is a single lip rotary shaft seal without a spring, reinforced with a metal case.

What media can the 45x52x4 ZBL seal be used with?
It is suitable for oils, greases, and standard industrial lubricants.

What is the advantage of a seal without a spring?
Lower friction, reduced wear, and simpler construction.

How do I select the correct shaft seal size?
The inner diameter must match the shaft diameter, and the outer diameter must match the housing bore.