139-0566 1390566 SEAL CATTT 527, D6H, D6H XL,D6R

1. Quick Details of lip seal 139-0566 :

2. 139-0566 picture:

3. Service parts no. :

4. FAQ

Q: What is SPCC material ?

A: SPCC is a low-carbon steel, which gives it its key properties. It's not a high-strength steel but rather one valued for its workability.

• Properties: SPCC has good ductility and is easy to press, bend, and deep draw. This makes it ideal for creating complex shapes without cracking. Its surface is also very smooth, which is great for plating, painting, or other surface treatments.
• Applications: It's used in a wide range of products, including automobile parts, electronic appliance casings (like computer towers), office furniture, and household items. Because it's a cold-rolled steel, its dimensions are highly precise.

Q: What is the difference of silicon o-ring and rubber o-ring?
A:

1. Temperature Resistance

• Silicone O-rings:Excellent high-temperature resistance (-60°C to 230°C / -76°F to 446°F).Performs well in extreme heat but can degrade at very high temps (>250°C) without proper reinforcement.
• Rubber O-rings:Nitrile (NBR): -40°C to 120°C (-40°F to 248°F).
• EPDM: -50°C to 150°C (-58°F to 302°F).
• FKM (Viton): -20°C to 200°C (-4°F to 392°F).

Winner: Silicone for extreme high & low temps.
2. Chemical Resistance

• Silicone O-rings:Good resistance to water, ozone, and UV light.Poor resistance to fuels, oils, acids, and solvents.
• Rubber O-rings:Nitrile (NBR): Excellent resistance to oils & fuels.
• EPDM: Resistant to water, steam, and mild chemicals.
• FKM (Viton): Excellent resistance to fuels, oils, acids, and harsh chemicals.

Winner: Rubber (NBR/FKM) for oil & chemical resistance.

5.Exhibition & Warehous

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More

Guangzhou OUB Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, OUB has accumulated a large number of domestic, imported excavators and broken hammer seal data, and for new products and new models of seals data constantly updated, finishing and perfect. After more than 10 years of practical inspection, product quality is stable and reliable, has accumulated rich experience and good reputation, with long-term cooperation at home and abroad friends and customers, "take care of the equipment,improve the efficiency and honesty" concept won the customers at home and abroad highly recognized and widely praised.
In the future, we will continue to maintain a rigorous scientific attitude, to maintain a professional, precise style of work, and strive to become the best supplier of Chinese seal repair kits, look forward to your cooperation!