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Design standard requirements for floating oil seals

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新闻

Rviton Machinery: Empowering Global Heavy Machinery Logistics with Advanced Floating Seals

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In the highly demanding world of heavy construction, mining, and agricultural machinery, mechanical integrity is paramount. Dust, mud, water, and extreme temperatures constantly threaten the life cycle of undercarriage systems and gearboxes. To combat these challenges, Huangshi Rviton Machinery Co., Ltd., a premier Chinese manufacturer, has announced a series of breakthroughs in the production and global distribution of its high-performance floating seal technologies.

Huangshi Rviton Machinery Co., Ltd. Revolutionizes Global Industrial Operations with High-Performance Heavy Duty Seals

Huangshi Rviton Machinery Co., Ltd. Revolutionizes Global Industrial Operations with High-Performance Heavy Duty Seals

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In modern construction, mining, and agricultural machinery, mechanical face seals (also known as lifetime seals or duo-cone seals) are vital for protecting rotary bearings from external contaminants while retaining lubrication. Huangshi Rviton Machinery Co., Ltd. has established itself at the forefront of this niche sector, leveraging advanced metallurgy and elastomer chemistry to deliver world-class products.

Huangshi Rviton Machinery Co., Ltd. Revolutionizes Global Heavy Equipment Performance with Advanced Floating Seal Group Solutions

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2026-05-27 14:50:27

Heavy machinery operates in some of the most unforgiving environments on Earth. From dust-choked mining pits in Western Australia to freezing construction sites in Northern Europe, undercarriage systems are constantly subjected to abrasive grit, mud, water, and extreme pressures. In these environments, the integrity of a machine’s undercarriage hinges entirely on the performance of its sealing system.

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Design standard requirements for floating oil seals

2020-07-20 11:05:23
1. The basic dimensions of floating oil seals must (except for oil seal customization) comply with the nominal outer diameter, small end outer diameter and limit (tolerance) deviation of GB/T 1804-1992 Class F. The size tolerance can be M Level execution

2. The floating seal material can generally be high chromium alloy cast iron; the hardness of the working end face after heat treatment is HRC60-70, the depth of the hardened layer is 0.8-1.0mm; the metallographic structure is alloy carbide, etc.

3. Floating sealing surface with bright band A, and the flatness should meet the level 4 accuracy requirements of GB/T 1804-1992

4. Floating sealing surface with A, radial width e=(2.5±0.5)mm, must be uniform and continuous.

5. Sealing surface B, surface roughness (Ra) 0.40pm; sealing surface with bright band A, surface accuracy (Ra) 0.1pm.

6. The floating sealing surface bright belt A must not have defects such as scratches, fraying, pores, sand holes and micro cracks; there must be no bumps on the periphery.

7. The float must be used in pairs (that is, two pairs of use), and cannot be replaced separately.

8. The relative linear velocity V≤2m/s during normal floating operation; the specific pressure of the end face P=0.35-0.7MPa.