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A bearing hinge with grease is a type of hinge that incorporates a bearing and grease for smooth, quiet operation. These hinges are commonly used in doors, gates, and other applications requiring heavy loads and frequent movement. They provide durability and longevity due to their ability to minimize friction and wear. Bearing hinges with grease come in various types, including:
Ball bearing hinges: These are the standard bearing hinges for doors. They have three main components: two leaf plates and one central pin. The ball bearings reduce friction between the leaves, providing smooth rotation. The bearings are packed with grease in a closed chamber, making them maintenance-free. These bearings support the door's weight and allow it to swing smoothly. They are commonly made of stainless steel, brass, or steel. They are most commonly used on exterior doors, heavy-duty doors, and security doors.
Concealed bearing hinges: These hinges are hidden from view when the door is closed. They have a bearing and a steel shell housing that contains the grease. The shell fits into the door and frame, concealing the hinge mechanism. The grease-filled bearing provides smooth, quiet operation without visible parts. They are ideal for applications requiring aesthetics and privacy, like bedroom and bathroom doors. These hinges create a clean, seamless look and are commonly used in high-end residential and commercial settings.
Pivot hinges: Instead of swinging on a traditional side hinge, pivot hinges rotate around a pivot point located at the top and bottom of the door. The pivot hinge has bearings in the top and bottom pivots, reducing friction and allowing smooth movement. They are suitable for heavy doors that need to open wide, like retail store entrance doors. These hinges allow doors to rotate 360 degrees, giving flexibility in positioning. They are used for interior room dividers and display cases.
Spring bearing hinges: These hinges incorporate springs that provide automatic closing. They have ball bearings that reduce friction and allow for smooth operation. The built-in grease application ensures quiet and efficient closing. They are ideal for high-traffic areas that require automatic closing, like fire exit doors and restroom doors. These hinges are suitable for light to medium-weight doors where self-closing is required.
Grease-bearing hinges have a unique design with a few different features. Here are some of the most important things and how they work.
Stainless steel construction
Stainless steel bearing hinges are made of strong, long-lasting metal. They don't rust easily, which means they stay working well for a long time.
Grease groove
The hinge leaves have a special line called a groove. This groove holds oil or grease. It makes sure the hinge parts slide smoothly when the door opens and shuts. The lubrication helps the hinges make less noise and stay strong.
Ball bearing
The bearing hinge has little balls inside. They are called ball bearings. The bearings reduce friction between the hinge leaves. The bearings help the door move easily without getting stuck.
Rust-resistant coating
Some bearing hinges have a special coating on them. The coating is called PVD, which stands for physical vapor deposition. The PVD coating helps to reduce the hinge from rusting. It makes the hinge last longer.
Lift-off design
Some bearing hinges can lift off the hinge pin. This design is called lift-off. Lift-off hinges make doors easy to take off if they need to be fixed or replaced.
Concealed bearing hinge
A concealed bearing hinge is placed inside the door and frame. It is hidden when the door is closed. The concealed hinge gives a clean, neat look. It still supports heavy doors quietly and makes them open smoothly.
There are a lot of things to consider when choosing a bearing hinge with grease. Here are some of them:
Load capacity:
The first thing to consider is the load capacity of the door or gate to be installed. This will determine the size and type of bearing hinge to be purchased. The load capacity of the hinge will also be affected by the weight of the door, material used in constructing it, and the size of the door opening.
Environmental conditions:
The environment where the door or gate will be fixed also plays a crucial role in choosing a bearing hinge. If the location is exposed to extreme weather conditions, then a hinge made with stainless steel or galvanized steel will be ideal to prevent corrosion. Wet locations require hinges that can withstand constant moisture, while high-temperature locations need heat-resistant hinges.
Frequency of use:
If the door or gate is opened frequently, then a bearing hinge with grease designed for high-traffic areas should be chosen. These types of hinges are durable and will provide smooth operation even with constant usage. Examples include ball bearing door hinges and heavy-duty door hinges.
Noise level:
Some doors or gates require quiet operation. In this case, bearing hinges with grease should be chosen for noise reduction. These types of hinges are specially designed to minimize noise levels when the door is opened or closed. They are mostly used in commercial or institutional settings.
Aesthetics:
Many bearing hinges with grease are designed for functionality, but some are also designed for aesthetics. If the hinge will be visible when the door is closed, then a hinge that complements the decor of the room or building should be chosen. There are many finishes and styles to choose from.
Maintenance:
Because of their built, bearing hinges with grease are low maintenance. However, they still require some level of maintenance to ensure their continued functionality. It is important to consider the type of maintenance required before purchasing a hinge. Some may require specific types of grease, while others may need to be replaced after a certain period.
Q1. How to install bearing hinges with grease?
A1. Measure and mark the desired location for the hinges on the door and frame. Carefully cut recesses into the wood to accommodate the hinges so that they sit flush. Align the hinges and secure them with screws. Repeat for the second hinge, ensuring proper alignment before tightening all screws.
Q2. How to clean and maintain bearing hinges with grease?
A2. Remove any dirt or debris using a soft cloth or brush. If needed, disassemble the hinge and clean individual parts. Apply fresh grease to bearings and reassemble the hinge, ensuring smooth operation.
Q3. Are bearing hinges with grease suitable for all door types?
A3. Yes, bearing hinges are suitable for various doors, including interior, exterior, heavy-duty, and high-traffic doors. They provide smooth operation and support for different door types.
Q4. Can bearing hinges with grease be used for heavy doors?
A4. Yes, bearing hinges are specifically designed for heavy doors. The ball bearings distribute weight evenly, reducing friction and allowing smooth opening and closing, making them ideal for heavy doors.
Q5. Where to buy bearing hinges with grease in bulk?
A5. Looking for a leading bearing hinge supplier? Look no further than a reliable online marketplace like Alibaba.com. The platform has countless suppliers and listings, making it easy to find and buy bearing hinges with grease in bulk at wholesale prices.