What is a Grease Fitting?
2025-09-15
A grease fitting, also known as a grease nipple, is a small but vital component used in machinery to ensure smooth operation and longevity. It provides a point for lubricant to be injected into bearings, joints, and other moving parts, reducing friction and preventing premature wear. At our factory, we understand that this small part plays a big role in industrial maintenance.
The Core Function of a Grease Fitting
The primary purpose of a grease fitting is to allow for the easy application of lubricant to areas that are otherwise difficult to access. This process, known as greasing, is a fundamental part of preventive maintenance. By using a grease gun, maintenance personnel can force fresh lubricant into the component, pushing out old, contaminated grease and ensuring the internal mechanisms are properly protected. This simple action significantly extends the service life of equipment.
Key Product Parameters of Our Grease Fittings
We manufacture our Sakura Snow Grease Fitting and Grease Nipple products to the highest standards, ensuring reliability and performance. Here are the critical parameters we focus on.
Material Specifications:
1. Carbon Steel: The most common material, known for its strength and durability. It is often zinc-plated to resist corrosion.
2. Stainless Steel: Ideal for applications in corrosive environments, such as food processing, marine, or chemical industries. Our 304 and 316 grades offer excellent resistance.
3. Brass: Used in applications where spark resistance is critical or where galvanic corrosion is a concern.
Thread Specifications: Precision threads are crucial for a leak-proof seal. We produce a wide range of thread types and sizes to meet global standards.
1. Common Thread Types: Metric (M6x1, M8x1, M10x1), UNC (1/4"-28, 1/8"-27), BSP (BSPP, BSPT).
2. Importance: Correct thread selection ensures the fitting seals properly and withstands system pressure.
Pressure Rating: Our fittings are engineered to withstand the high pressure generated by grease guns, typically up to 10,000 PSI, without failure.
Ball Check Valve: A small spring-loaded ball inside the fitting prevents lubricant from leaking out and contaminants from entering the system after greasing.
Operating Temperature Range: Our standard fittings perform reliably in temperatures from -20°C to 120°C. Special materials can extend this range for extreme applications.
Here is a table summarizing our standard product range:
| Parameter | Options & Specifications | Application Note |
| Product Type | Standard, Button Head, Flush, Hydraulic, Angled | Choice depends on accessibility and space constraints. |
| Material | Carbon Steel (Zinc-Plated), Stainless Steel 304/316, Brass | Select based on environmental and corrosion resistance needs. |
| Thread Size | Metric: M4, M6, M8, M10; Inch: 1/4", 1/8" | Must match the thread on the equipment's receiving part. |
| Pressure Rating | Up to 10,000 PSI | Ensures integrity during the greasing process. |
| Ball Type | Spring-loaded steel or stainless steel ball | Critical for sealing and preventing contamination. |
Frequently Asked Questions (FAQ)
Q1: What is the difference between a grease fitting and a grease nipple?
There is no practical difference between a grease fitting and a grease nipple. The two terms are used interchangeably to describe the same component. "Grease fitting" is the more common term in North America, while "grease nipple" is frequently used in Europe and Asia. Both serve the identical function of providing a connection point for a grease gun.
Q2: How often should you grease a fitting?
The frequency of greasing depends entirely on the application, operating environment, and manufacturer's guidelines. Factors like temperature, load, speed, and exposure to moisture or contaminants greatly influence lubrication intervals. Some high-use machinery may require greasing daily, while other applications may only need it every several hundred hours of operation. Always consult your equipment's manual for the recommended schedule and type of lubricant to use with your Sakura Snow Grease Fitting and Grease Nipple.
Why Choose Our Products
In our factory, quality control is integrated into every step of the manufacturing process. From selecting raw materials to final inspection, we ensure every Sakura Snow Grease Fitting and Grease Nipple meets stringent performance standards. Our commitment is to provide components that enhance your machinery's reliability and reduce downtime. Upgrade your maintenance routine with reliable lubrication components from Zhuji Sakura Snow Machinery Co., Ltd. Contact us today to discuss your requirements or request a catalog of our full product range.
