Square Ring for Shaft (GSI)

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Square Ring for Shaft (GSI)

The square ring for shafts is a combination of a low-friction filled polytetrafluoroethylene (PTFE) ring and an O-ring. The O-ring provides sufficient sealing preload and compensates for the wear of the PTFE ring. PTFE features a low coefficient of friction, with similar dynamic and static friction properties.

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Product Description

Technical Specifications

Application Scenario

Ordering Information

This seal is suitable for high- and low-speed reciprocating motions and high-pressure cylinder rod sealing systems, offering bidirectional sealing performance. It is typically used in conjunction with guide rings. For shaft diameters smaller than Φ30, a split groove design should be adopted. The seal also demonstrates excellent performance under low-pressure conditions.

Core Feature

● Excellent Sealing

Prevents oil leaks and blocks external contaminants.

● Wear-Resistant

Durable materials reduce wear under high friction and pressure.

● High Compression Strength

Handles high axial pressure without losing performance.

● Heat-Resistant

Works well in high-temperature environments.

● Easy to Install

Unique shape ensures stability and reduces installation errors.

Material composition

The primary sealing material is polytetrafluoroethylene (PTFE), with the O-ring made of nitrile rubber (NBR) or fluororubber (FKM).

● Pressure Resistance: 0-40 MPa

● Reciprocating Speed: ≤ 5 m/s

● Operating Temperature:

NBR: -30 to +120°C

FKM: -20 to +200°C

● Working Media: Hydraulic oil, gas, water (for phosphate ester-based hydraulic oil, fluororubber should be selected).

Design Standards

This series complies with the ISO 3864 standard.

Mechanical Manufacturing

Widely used in mechanical transmission, bearings, hydraulic systems, and other equipment that require high sealing performance.

Application

Hydraulic Systems

Effectively prevents oil leakage, ensuring stable operation of hydraulic systems under high-pressure conditions.

Application

Industrial Equipment

Provides long-lasting sealing effects in shaft seals of pumps, compressors, turbines, and other equipment.

Application

Construction Machinery

In heavy equipment like excavators and cranes, square rings handle high-pressure and high-friction environments in transmission and hydraulic systems.

bearings seal

Square Ring for Shaft (GSI) is identified using an order number.

Example: GSI-0180-PTFE+NBR

● Order Part Number：GSI

● Rod Diameter *10：0180

● Material：PTFE+NBR

(Special specifications can be customized according to customer requirements.)

Structure Display

Product Description

Technical Specifications

Application Scenario

Ordering Information

OUR ADVANTAGES

Why Choose Mingyu

Mingyu Sealing Technology (Taicang) Co., Ltd has been established in 1995, the executive member of Chinese hydraulic pneumatic sealing industrial association, the well-known private technology enterprise in Jiangsu. The company is specialized in the production, development and marketing for rubber or plastic hydraulic sealing.

Sealing Excellence Since 1995

Nearly 30 Years of Experience in Supplying Sealing Parts to Global Leading Equipment Manufacturers.

Superior Supply Chain Management

The IATF 16949-2009 and ISO 9001-2008 has been qualified, enabling us to meet the requirements of customers and their supply chain requirements.

Offer Customization Service for Non-standard Parts

Professional technology will carry out preliminary planning according to the customer's working conditions.

Square Ring for Shaft (GSI)

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