China Spherical Plain Bearings suppliers give many common applications where their universal joint and high load capacity are well suited:

Robotics and automation.

Spherical plain bearings enable robots, robotic arms and automated machines to pivot, swivel and rotate joints smoothly in any direction. They provide freedom of motion without restricting movement to single planes.

Aircraft components.

Spherical bearings are used in flaps, ailerons, rudders, trim tabs and other control surfaces on aircraft. They allow these components to move universally while under substantial aerodynamic loads.

Machinery and equipment.

Spherical bearings facilitate motion in mills, lathes, presses, punches, shears, forging presses and other metalworking machinery. They enable adjustment and positioning of components in all directions with heavy loads.

Furniture and fixtures.

Spherical bearings are used in outlets, lighting fixtures, medical equipment, shelving, cabinetry and other fixtures to provide universal motion capability with vertical, thrust and lateral loads up to 1-2 tons.

Agricultural and construction.

Spherical bearings help enable motion in equipment like boom lifts, masts, hitches, trailers, excavators, cranes, etc. They allow pivotal and swiveling motion for components carrying large weights or forces.

Bicycles.

Spherical bearings are used extensively in bicycles including pedal spindles, front forks, headsets and handlebar stems. They enable twisting motion with minimal friction and allow riders to steer, pivot and maneuver the bike in all directions.

Medical equipment.

Spherical bearings facilitate motion and positioning in equipment like X-ray tables, stretchers, gurneys, beds, wheeled carts and other furniture that must support heavy loads during use. They allow components to move and pivot in all planes freely and precisely.

Potentiometers and trimmers.

The universal motion capability of spherical bearings is useful in components like potentiometers, trimmers, rheostats and other variable resistors where a wiper arm must move freely over the resistance track in all directions.

Industrial equipment.

Spherical bearings are found in many types of industrial equipment, tooling, jigs, fixtures, bases, holders, slides, tables, presses, mills and other components requiring load support and universal motion ability. They enable heavy parts to move, swivel and rotate smoothly in all planes.

Instrumentation.

High precision spherical bearings facilitate motion in components like telescopes, microscopes, measurement tools, gauges, indicators and other instruments where components must align and position precisely. They provide a frictionless motion base for such finely tuned mechanisms.

Their properties make them well suited for robotics, aircraft, machinery, medical equipment, furniture, industrial tools, instrumentation and many other types of mechanisms. The universal joint and load handling capability of spherical bearings enable complex motion and component interaction in all possible planes.

Determining the proper grease fill amount for hydraulic cylinder bushings like on an excavator hydraulic bucket cylinder typically requires the following steps:

Identify the cylinder type and size.

Measure the cylinder bore diameter and stroke length to determine the total volume of the cylinder.

Calculate the volume of the piston rod and blind end (open end) sections.

The piston rod volume is pi x rod diameter^2 x stroke length / 4. Blind end volume is pi x bore diameter^2 x blind end length / 4. Subtract these from the total cylinder volume.

The remaining volume is the volume of the cylinder tube that houses the hydraulic piston. This is the volume you will pack with grease.

Decide on a target percentage fill, typically 25-35% of the cylinder tube volume for most hydraulic cylinders.

So if your cylinder tube volume is 100 cu in., aim for filling 25-35 cu in. of space with grease.

Select a grease with the proper rating for the cylinder pressures and temperatures. Typical hydraulic cylinder greases are NLGI #2 or #3.

Pack the grease into the cylinder tube until you reach your targeted fill volume.

Use a grease gun, manual ram, or grease pistol to apply the grease through the end seals or via a zerk fitting.

Wipe off any excess grease from the exterior of the cylinder.

Ensure all seals and seals surfaces remain clean and free of grease.

Repeat steps 1 through 7 for any other hydraulic cylinder grease fill applications on your excavator.

Be sure to follow your excavator manufacturer’s recommendations for regreasing intervals based on hours of operation and environmental conditions. Typically 6-18 months for normal use.

Here are some key installation requirements for triple offset butterfly valve:

Proper orientation

Triple offset butterfly valves have an offset shaft design that requires installation in the correct orientation. The valve must be installed with the offset portion of the shaft in the vertical position for the valve to open and close properly. Installing it at an angle can prevent the valve from sealing fully.

Align the offsets

When installing multiple triple offset butterfly valves in a pipeline, the offsets must be properly aligned to provide a smooth transition. Misaligned offsets can obstruct flow and prevent the valves from closing fully.

Provide clearance

Additional clearance is needed around the valve hub and offsets. The valve must have room to rotate open and closed without hitting adjacent pipes/structures. It’s best to provide 1-2 times the valve diameter in clearance space.

Support the valve

Butterfly valves require support to prevent excess stress on the pipe or valve. Flanges must be properly aligned and firmly bolted together. Valves must be supported to handle the weight of any adjacent or connected piping. Install saddle supports if needed.

Ensure accessibility

Triple offset butterfly valves have a non-traditional design that can be larger than standard butterflies. Additional space must be provided to access the valve for operation and maintenance. Enough clearance is needed to open/close the valve and service any internal parts.

Chamfer the edges

Any sharp bends, abrasive surfaces or edges near the valve could damage the seals or seat. File down any rough edges before installing the valve to prevent leakage. A chamfered or smoothed surface helps ensure a tight seal.

Apply sealant

Apply pipe sealant or thread seal tape to the threads of butterfly valve flanges before installation. This helps prevent leaks by ensuring a tight seal between the flange and adjacent pipe. Follow the directions on the sealant product for proper application.

Test for leaks

Once installed, test the valve to ensure there are no leaks before beginning operation. Check seals and joints under pressure with soapy water or a leak detection solution. Make any necessary tight adjustments to prevent leakage.

Lubricate moving parts

Some butterfly valves require lubrication of the shaft and disc to enable easy opening and closing, especially if installed in a corrosive environment. Follow the valve manufacturer’s recommendations regarding type of lubricant and application method. This helps prevent damage to internal parts.

Check valve manufacturer give some common types of check valves:

Swing check valve

A swing check valve has a disc that swings on a hinge to allow flow in one direction and prevent backflow in the opposite direction.

Lift check valve

A lift check valve has a disc that lifts up from the seat to allow flow in one direction and closes to prevent backflow in the opposite direction.

Ball check valve

A ball check valve has a ball that moves up and down within the valve body to allow flow in one direction and prevent backflow in the opposite direction.

Diaphragm check valve

A diaphragm check valve has a flexible diaphragm that moves up and down to allow flow in one direction and prevent backflow in the opposite direction.

Stop-check valve

A stop-check valve is a combination of a globe valve and a lift check valve. It allows flow in one direction, but can be closed to prevent backflow.

Tilting disc check valve

A tilting disc check valve has a disc that tilts on a hinge to allow flow in one direction and prevent backflow in the opposite direction.

Dual plate check valve

A dual plate check valve has two spring-loaded plates that move in opposite directions to allow flow in one direction and prevent backflow in the opposite direction.

The specific type of check valve used will depend on the application and requirements of the system.

Including structural steel, tool steel, die steel, spring steel, bearing steel, cold heading steel, hard wire
Steel is an iron-carbon alloy with a carbon content between 0.0218% and 2.11%. In order to ensure its toughness and plasticity, the carbon content generally does not exceed 1.7%. In addition to iron and carbon, the main elements of steel include silicon, manganese, sulfur and phosphorus. There are various classification methods of steel, and the main methods are as follows:

Classified by quality

Ordinary steel: (P≤0.045%, S≤0.050%);
High-quality steel: (P, S≤0.035%);
High quality steel: (P≤0.035%, S≤0.030%).

Classification by chemical composition

Carbon steel: a. Low carbon steel (C≤0.25%); b. Medium carbon steel (0.25≤C≤0.60%);
c. High carbon steel (C≥0.60%).
Low alloy steel (total content of alloying elements < 5%); b. Medium alloy steel (5% ≤ total content of alloying elements ≤ 10%); c. High alloy steel (total content of alloying elements > 10%).

Classified by forming method

(1) Forged steel; (2) Cast steel; (3) Hot rolled steel; (4) Cold drawn steel.

Classification by Metallographic Organization

Annealed state: a. hypoeutectoid steel (ferrite + pearlite); b. eutectoid steel (pearlite); c. hypereutectoid steel (pearlite + cementite); d. ledeburite steel (pearlite + cementite).
Normalized state: a. pearlitic steel; b. bainite steel; c. martensitic steel; d. austenitic steel. (3) No phase change or partial phase change

Classification by purpose

Engineering steel: a. Ordinary carbon structural steel; b. Low alloy structural steel; c. Reinforced steel.
Carburizing steel: a. Nitriding steel; b. Steel for surface quenching; c. Easy-cut structural steel; d. Steel for cold plastic forming: including steel for cold stamping and steel for cold heading.
Carbon tool steel; a. Alloy tool steel; b. High speed tool steel.
Special performance steel: a. Stainless acid-resistant steel; b. Heat-resistant steel: including anti-oxidation steel, heat-strength steel, valve steel; c. Electric heating alloy steel; d. Wear-resistant steel; e. Steel for low temperature; f. Electrical steel.
Steel for bridges, steel for ships, steel for boilers, steel for pressure vessels, steel for agricultural machinery, etc.

Comprehensive classification

According to the style of furniture, it can be divided into

Modern furniture, European classical furniture, American furniture, Chinese classical furniture, neoclassical furniture.

European-style classical home: European-style classical furniture has rich cultural connotations and is suitable for European-style classical-style decoration.

American furniture: the atmosphere is simple, the lines are random but clean and capable.

Chinese classical furniture: graceful and elegant, craftsmanship, fascinating. Not only beautiful and generous, but also practical and strong!

Neo-classical furniture: smooth lines, exquisite carvings. The style image with both nostalgia and fashion is not only liked by middle-aged and elderly people, but even young people have begun to have a soft spot for it.

Classify furniture according to the materials used

Solid wood furniture, panel furniture, upholstered furniture, rattan furniture, bamboo furniture, metal furniture, steel and wood furniture.

Solid wood furniture: It is made of logs as materials, and processed by polishing, painting and other processes. Sophisticated materials, durable.

Panel furniture: panel forming, stable performance, not easy to deform, convenient processing and transportation.

Upholstered furniture: Upholstered furniture mainly refers to furniture with sponges and fabrics as the main body.

Rattan furniture: light and generous, those finely intertwined rattans are simple and refreshing.

Metal furniture: very individual style, rich color choices, various varieties, folding function, good value, good quality and low price.

Steel-wood furniture: Simple geometric structure, simple steel-wood combination and simple color expression express the simplicity of steel-wood furniture.

Glass furniture: It is very popular for its unique crystal clear, fresh and clear features.

Marble furniture: The surface is crystal clear and moist, the texture is warm and graceful, the pattern and texture are beautiful, and it has the advantages of not being afraid of being dirty or scalding, and is deeply loved by consumers.

Ceramic furniture: Ceramic materials generally have high hardness, but poor plasticity. In addition to the use of tableware and decoration, it also plays an important role in the development of science and technology