The sealing skeleton oil seal of the rotating shaft generally consists of three parts: oil seal body, reinforced skeleton and self-tightening coil spring. The sealing body is divided into bottom, waist, cutting edge and sealing lip according to different parts. The skeleton is like the steel bars inside the concrete components, which strengthens and enables the oil seal to maintain its shape and tension. Usually, the inner diameter of the skeleton oil seal in the free state is smaller than the shaft diameter, that is, it has a certain "interference". Therefore, when the oil seal is installed on the oil seal seat and the shaft, the pressure of the oil seal cutting edge and the shrinkage force of the self-tightening coil spring produce a certain radial tightening force on the shaft. After a period of operation, the pressure will quickly reduce or even disappear. , therefore, adding a spring can compensate for the self-tightening force of the oil seal at any time.

Brief description: Brand: J type without skeleton Model: GJF/GJFR Oil seal Usage: Other materials: rubber Applicable models: bearings, rollers, others Working temperature: 250℃

Detailed introduction: 1. Standard

Busak+Shamban TRJ type TRL type

CFW—Simmerring R35 type R37 type

2. Features: Mainly used in the transmission part of rolling mills and heavy machinery. The oil seal has an outer shoulder reinforced with cloth. It is tightly integrated with the rubber sealing lip, and a spring is used to preload the sealing lip.

3. Materials: Use nitrile rubber + nitrile rubber cloth for temperatures below 100°C, and fluorine rubber + fluorine rubber cloth for temperatures below 200°C.

4. Performance* The outer edge of the oil seal reinforced with cloth is reliable and strong * The sealing lip is highly wear-resistant * The radial contact pressure of the sealing lip is durable

*Good sealing effect

5. Application* Steel mill rolling mills (POMINI, DANIELI and other imported rolling mills) * Shipbuilding industry * Wind power generation equipment * Grinding machines

Product use: used for sealing of rotating shafts

Material: nitrile rubber

Product hardness: 80±5°A

Working pressure: ≤0.03Mpa

Working temperature: -40~+120℃

Standard source: HG4-338-66

The skeleton oil seal structure consists of three parts: oil seal body, reinforced skeleton and self-tightening coil spring. The sealing body is divided into bottom, waist, cutting edge and sealing lip according to different parts. Usually, the inner diameter of the skeleton oil seal in the free state is smaller than the shaft diameter, that is, it has a certain "interference".