There are different bearings ,such as ball bearings ,roller bearings ,shaft bearings ,ceramic bearings ,high temperature bearings ,taper roller bearings ,thrust bearings ,needle roller bearings etc.

For thoese bearings all are all one of the movind part which make machinery rotation .

MKL BEARINGS can produce different type of bearings for you .

MKL BEARINGS is professional manufactuer of bearings，we can produce bearings according to your design ,such as produce accoding to your drawing ;and we can print your logo/brand on the products, you just need to send us your logo/brand files,we can prepare produciton design before production.

free samples are available for you ,just feel free to contact with us free .

E-mail:seven@mklbearing.com

MKL BEARINGS is China Non-Standard Bearing - Manufacturers & Suppliers.

Integrates R&D, Manufacturing, Trading, Sales of Bearings, Rollers, Pulleys.

For material we are good at Stainless Steel material such as SUS420 material .

To Meet Various Market's Needs, We Have Successfully Developed Plastic Rollers, Wheels and Pulleys Which are Widely Used for Sliding Doors,Windows, Drawers, Shower Room, etc.

We can produce customized service according to your requirements ,such as can produce according to your drawing ,or your sample ;production drawing can be provide before order ; besides we can provide mass production sample for you to test before order delivery .

If you have any bearings ,rollers ,pulleys requirements just feel free to let me know ,we will do best support for you .

Are all sliding door rollers the same?

There are different type of sliding door rollers .
It depends on your door and roller, process may differ slightly.
Most aluminum sliding glass doors use single-assembly rollers. Most are steel, although some use nylon. The best way to figure out which rollers you need is to use steps 1-6 to remove your rollers and buy replacements that match.

MKL BEARINGS can provide different type of sliding door rollers ,we also can produce special roller ,you just need send us your sample or drawing then we can produce as your need ; before order we can send you sample to test ,after you pass the quality then you confirm order .

For more information just check our website at www.mklbearing.com or send me mail free at seven@mklbearing.com

Bearings play a crucial role in the operation of stage lighting equipment, especially in fixtures that require movement such as moving head lights. In the context of stage lighting, bearings are utilized in various moving parts such as pan and tilt mechanisms, allowing lights to move smoothly and accurately during performances.

MKL BEARINGS can produce bearings with below Features:

Smooth Movement: Bearings enable stage lights to move smoothly and precisely, allowing for the accurate positioning of lights during performances. This is essential for creating dynamic lighting effects and highlighting different aspects of a performance.

Durability: Stage lighting fixtures often endure frequent movement and usage, making the durability of bearings a critical factor. High-quality bearings can withstand the rigors of continuous movement and provide long-term reliability.

Precision: Bearings contribute to the precision and accuracy of movement in stage lights. Whether the lights need to pan, tilt, or rotate, the smooth operation of bearings ensures that the lights can be positioned exactly where needed, enhancing the overall lighting design.

Reduced Friction: Bearings help reduce friction between moving parts, which not only ensures smooth movement but also minimizes wear and tear on the equipment. This can extend the lifespan of the lighting fixtures and reduce maintenance requirements.

Types of Bearings: Different types of bearings may be used in stage lighting equipment, such as ball bearings, roller bearings, or linear bearings, depending on the specific requirements of the fixture and movement mechanism.

MKL BEARINGS can produce various types of bearings for security pan/tilt, monitoring, stage lighting, sweepers, motors etc;for more information about bearings just feel free to contact with us free.

E-mail:seven@mklbearing.com

Agricultural machinery bearings are one of the commonly used accessories for agricultural machinery and are widely used in agricultural vehicles, tractors, diesel engines, electric motors, mowers, balers, harvesters, threshers and other agricultural machinery.

The accuracy, performance, life and reliability of agricultural machinery bearings play a decisive role in the accuracy, performance, life and reliability of the main machine. Agricultural machinery bearings can continuously withstand continuous vibration and high impact loads, meet reliable operation under various weather conditions, and have a very simple structural design to ensure efficient utilization of the machine.

MKL BEARINGS can produce different bearings used for Agriculture Industry such as :

Flanged Disc Harrow Bearings：ST491A, ST491B, FD209-1 1/8SQ, FD209-1 1/4SQ, FD211-1 1/2SQ, F0211-1 3/4RD, F0211-1 3/4HX, F0211-1 15/16RD, F0211-1 15/16RDC*, FD211-2 3/16RD

Hexagonal Bore Bearings: 202KRR3, 204KPP2, 204KRR2, 204KRRB2, 205KPP2, 205KRR2, 205KPPB2, 206KRR6, 206KRRB6, G207KPPB2, W208KRRB6, W208PPB16, 209KRRB, 2210PP20

Seeder Bearings: 204PY3, 205GP-SMB, 205KPP2, 205KPPB2, 5203KYY2, 5206KPP3, F04100149, G59196, G59196-20, G14830390

Baler Bearings: 203KRR3+FA16, CF204KPP-SD-ASY2, CF204PP16, CF204PP52-ASY, CF304KPP-SD-ASY2, CF304KPP-SP1 -ASY, CF304PP19, CF304PP72-ASY, CF5203KYY-ASYCF5002-ASSY, CF5002PP40-ASY, CF5002-SD-ASY2,

For more information about Agricultural machinery bearings, just feel free to contact with us free.

There are many type of bearings can used in motor ;

Such as miniature bearings ,608-2RS bearings, SMR83ZZ bearings ,S689ZZ motor bearings,SMR63ZZ bearings  etc.,

The bearings play an import role for motor.

Bearings are used to permit a rotary motion and transmit the power between machine parts. Rolling element bearings allow relative movement of joined two parts: inner and outer rings that move in opposite directions and are separated by rolling elements.

MKL BEARINGS can produce different type of high precision bearings used for motor ,for more information just feel free to contact with us free ;

E-mail:seven@mklbearing.com

There are different type of bearings can used for electrical motor.such as ball bearings , sliding bearings and oil-bearing bearings;

Miniature or small motors generally use oil-bearing with few accessories and no maintenance, which is beneficial to simplifying the structure.

MKL BEARINGS can produce different type of miniature bearings for motor ;such as the S625RS bearings we are produced now , the bearings can work with high speed and low noise, and can pass with long time salt spray; for more information just feel free to contact with us at seven@mklbearing.com ,we can provide free sample for test before order .

I. Overview of Heating Cable Ice Dam Prevention Systems

Roof and gutter heating cable systems are an effective solution for preventing ice dams in winter. They convert electrical energy into heat, melting ice and snow and protecting roofs from damage.

 

II. System Components

Heating Cable: Central Heating Element

Temperature Control System: Automatic Temperature Control

Mounting Accessories: Mounting Clamps, End Caps, etc.

Electrical Junction Box: Electrical Accessory

 

III. Pre-Installation Preparation

3.1 Roof Assessment

Check the roof slope, material, and structure

Identify frost-prone areas (eaves, gutters, drainpipes, etc.)

Measure the required coverage length

 

3.2 Material Calculation

Calculate the required cable length based on the roof area

Consider power requirements (typically 8 to 12 watts/ft)

 

3.3 Tool Preparation

Cable Cutter

Voltage Tester

Retention Clamps and Specialized Tools

Safety Equipment (Safety Harness, Non-Slip Shoes, etc.)

 

IV. Installation Steps

4.1 Roof Installation

Cable Preparation: Coil the cable along the eaves, covering frost-prone areas. Cable Securing: Use dedicated clips, spaced approximately 30 to 45 cm apart.

Power Connection: Ensure the power supply is properly connected to the temperature control system.

 

4.2 Gutter Installation

Gutter Cleaning: Ensure the gutter is free of debris.

Cable Routing: Route the cable in a straight or circular pattern along the bottom of the gutter.

Drain Extension: The cable must be extended to the ground or drain outlet.

 

4.3 Electrical Connection

Thermostat Installation: Select a suitable location.

Electrical Connection: Have a professional electrician perform this procedure.

System Testing: Confirm that all components are functioning properly.

 

V. System Maintenance

Seasonal Inspection: Inspect the system annually before winter.

Cleaning and Maintenance: Remove debris from the gutters.

Functional Testing: Ensure that the temperature control system accurately responds to temperature changes.

 

VI. Safety Instructions: Always disconnect the power supply during installation.

Use non-slip safety equipment.

Avoid excessive bending or damaging the cables.

The system must be installed and maintained by professionals.

 

VII. Frequently Asked Questions

Q: How much will heating cables increase my electricity bill?

A: Depending on usage and location, the average monthly cost in winter ranges from $20 to $100. Smart thermostats can significantly reduce energy consumption.

 

Q: What is the lifespan of the system?

A: A high-quality heating cable system can last over 20 years, while the thermostat may need to be replaced every 10 years.

 

Q: Can I install it myself?

A: While some work can be done yourself, hiring a professional is recommended for electrical connections and high-risk roofing work.

The core of any underfloor heating system is the installation of the heating cable. Proper installation ensures effective heating, safety, and a long service life. Below are detailed installation instructions and tips to avoid common problems.

 

1. Preparation

Check the blueprint

Calculate the cable length and spacing based on the room's area and heat load (typically 10-20 cm apart, with no overlapping).

Check the thermostat location, power cable routing, and power rating.

⚠️ Troubleshooting: Insufficient or excessively long cables can lead to localized overheating or uneven heating.

Material Inspection

Cable: Check the integrity and resistance of the insulation according to the manufacturer's specifications (using a multi-meter).

Supporting Materials: Insulation board (at least 2 cm thick), reflective film, wire mesh, staples, thermostat, etc.

⚠️ Troubleshooting: Poor-quality insulation board can easily leak heat downwards, increasing energy consumption.

 

2. Floor Preparation

Leveling the Base Layer

Remove debris and sharp objects from the floor and level it with cement mortar (flatness of 3 mm or less per 2 m).

⚠️ Mistake to Avoid: An uneven floor surface may damage the cable insulation.

Laying the Insulation

Lay extruded polystyrene (XPS) or EPS insulation and seal the seams with aluminum foil tape.

In humid areas (such as the first floor), lay a moisture-proof sheet.

 

3. Cable Laying Procedure

Securing the Reflective Film and Wire Mesh

Lay the reflective film (aluminum foil side up) on top of the insulation, overlapping it by 5 cm. Lay a wire mesh (optional, to strengthen the adhesion to the concrete).

Cable Laying Method

Snake Laying: Suitable for most rooms. Maintain even spacing (use a spacing ruler).

Spiral Laying: Suitable for circular or curved areas. Avoid bends less than five times the cable diameter.

⚠️ Mistakes to avoid: Spacing cables too close together can lead to overheating, while spacing them too far can lead to uneven heating.

Secure the Cable

Secure cables using plastic clips or cable ties to prevent metal staples from damaging the insulation.

Loosen the cable at the bend to avoid excessive tension.

Avoid sensitive areas.

Keep at least 10 cm away from walls and away from furniture fixtures and floor-standing cabinets.

Keep at least 5 cm away from water pipes and electrical wiring.

 

4. Electrical Connections and Testing

Install the thermostat and connect the wiring.

The height of the thermostat's recessed box should be 1.2–1.5 m. Connect the cold wire (power cord) and hot wire (cable) and protect them with PVC tubing.

⚠️ Avoid mistakes: Reversing the hot and cold wires can cause system failure.

Resistance and Insulation Test

Test the insulation resistance using an insulation resistance tester (1 MΩ or higher). The resistance measured with the multi-meter should be within 10% of the nominal value.

 

5. Building the Fill Layer

Pour the concrete/mortar.

Thickness: 3-5 cm (pebbled concrete is ideal). Do not step on the cable while pouring.

Allow the cable to dry naturally (curing period: 21 days or more). Avoid opening windows for ventilation, as this can cause rapid drying and cracking.

Secondary Test

Retest the resistance and insulation properties after the fill layer has completely dried.

 

6. Common Errors and Solutions

Problem Cause Solution

Partial heat loss Uneven cable spacing or broken cables Plan the route before installation and perform a test after installation.

Thermostat failure. Power mismatch. Select a thermostat based on the cable's wattage.

Floor cracks. The infill layer is too thin or not sufficiently cured. Ensure it is at least 3 cm thick and properly cured.

Excessive energy consumption. The insulation layer is missing or the reflective film is damaged. Check the integrity of the insulation layer.

 

7. Precautions

Cutting or extending the cable is strictly prohibited. The cable must be fully installed.

Do not apply electricity to the cable during installation to prevent overheating or damage.

After installation is complete, keep the installation drawings for future maintenance.

Standardized installation and rigorous testing significantly reduce the risk of subsequent failures. If you do not have professional experience, we recommend consulting a certified underfloor heating installation team.

CRGO (Cold Rolled Grain Oriented, cold-rolled grain-oriented silicon steel) cores have become the core material in transformer manufacturing due to their unique material properties and electromagnetic performance. The following are the main reasons for their wide adoption:

1.Low iron losses

• Energy efficiency improvement: CRGO steel, through the addition of silicon (3% to 4%) and the cold rolling process, forms a directional grain structure that significantly reduces hysteresis loss and eddy current loss. This leads to a reduction of about 30% to 50% in no-load losses of transformers, and over long-term operation, it can greatly save energy costs.

• High resistivity: The silicon element increases the resistivity of the steel, inhibits the generation of eddy currents, and further reduces the proportion of energy converted into heat.

2.High Magnetic Permeability

• Efficient magnetic flux conduction:

The directional alignment of grains along the rolling direction creates a highly oriented structure, allowing magnetic flux to conduct efficiently along a low-resistance path. This reduces the magnetizing current requirement and improves the energy efficiency ratio of transformers.

• High saturation magnetic flux density:

High-silicon CRGO grades (e.g., high permeability grades) can carry higher magnetic flux in smaller volumes, enabling compact transformer designs while maintaining performance. This is critical for modern power systems requiring space-efficient solutions without compromising capacity.

3.Reduced Magnetostriction

• Noise and vibration reduction:

The optimized silicon content and grain structure in CRGO steel suppress the magnetostriction effect (material deformation caused by magnetic field variations). This significantly reduces operational noise and mechanical vibrations, making it ideally suited for noise-sensitive environments such as residential areas, hospitals, or data centers.

• Material stability:

Lower magnetostriction also minimizes long-term structural stress on the core, enhancing the transformer's durability and reliability under cyclic loading conditions.

4.High Stacking Factor

• Enhanced material efficiency:

The smooth surface and uniform thickness of CRGO steel sheets enable stacking factors exceeding 95% during core assembly. This minimizes air gaps, optimizes the magnetic circuit structure, and reduces material waste.

• Mechanical precision:

High dimensional consistency in CRGO laminations ensures stable core geometry, improving manufacturing repeatability and operational performance in high-power transformers.

5.Process Compatibility

• Laminated structure compatibility:

CRGO steel is used in thin sheet form, with interlayer insulation coatings (e.g., oxide layers or organic coatings) to isolate laminations. This blocks eddy current paths and further suppresses energy losses while maintaining magnetic efficiency.

• Mechanical stability:

The material exhibits high mechanical elasticity and fatigue resistance, ensuring the core maintains dimensional stability under prolonged electromagnetic stress. This property extends transformer service life and reduces maintenance requirements, even under cyclic operational loads.

 

Disadvantages and Trade-offs：

Although CRGO steel has ~20%–30% higher costs and greater weight compared to conventional silicon steel, its unmatched advantages in energy efficiency, longevity, and reliability make it indispensable in power transformer applications. It is particularly critical for:

 

• High-voltage transformers (>11 kV):

Enables efficient energy transmission with minimal losses over extended power grids.

• Energy-efficient distribution transformers:

Complies with global energy-saving regulations by reducing lifecycle operational costs through lower core losses.

• Precision-demanding systems:

Provides stable performance in noise-sensitive or reliability-critical environments, such as data centers, renewable energy infrastructure (solar/wind converters), and medical imaging equipment.

Summary：

CRGO cores achieve minimized magnetic losses and maximized magnetic efficiency through the synergistic effects of its oriented grain structure and silicon alloying design. This technology not only aligns with global energy efficiency standards, but also serves as a foundational material for advancing smart grid architectures and enabling the decarbo nization of power systems.