Precision Ceramic Ball Bearings for High Speed and Heavy Loads

Product Description

Product Description

DARM deep groove ball bearings for motors
In order to meet the vibration, noise and energy consumption requirements of the motor industry in China, the new deep groove ball bearings designed by DARM reduce the vibration, noise and energy consumption levels of the motor in any application, while also extending the service life of the motor.
Advantages: 
Low vibration and noise to ensure smooth operation of the motor; 
Less bearing friction, improve motor efficiency and reduce motor energy consumption; 
Capped bearing with special grease for extended service life; 
Improve reliability and reduce end-customer costs.

DARM deep groove ball bearings for water pump
In order to meet the noise, lift and energy consumption requirements of the water pump industry in China, the new deep groove ball bearing designed by DARM for water pump improves the axial load of the bearing by changing the internal structure design of the bearing, reduces the noise and energy consumption level of the water pump in any application, and also extends the service life.
Advantages: 
Low vibration and noise ensure smooth operation of the pump; 
Lower bearing friction, improve efficiency and reduce energy consumption; 
Capped bearing with special grease, worry-free starting at -40ºC; 
Large axial load, improve reliability, extend service life.

DARM special roller bearings for mining machinery
In order to solve the problems of poor waterproof and dustproof performance and short service life of roller bearings in China's mining machinery industry, the new type of roller bearings designed by DARM improve the waterproof and dustproof performance of bearings by changing the bearing seal structure, and also extend the service life.
Advantages: 
High water and dust resistance and low torque ensure smooth operation of the equipment; 
Capped bearing with special grease for extended service life; 
Easy to use and install, improve customer installation efficiency; 
Reduce the cost of use for end users.

DARM special bearings for high speed servo motor
In order to meet the requirements of Chinese servo motor industry for low noise and long life of high speed servo motor, the new high-speed servo motor special bearings designed by DARM reduce the noise of bearings and greatly improve the service life by using silicon nitride ceramic ball as the rolling body and polymer nylon retainer.
advantage
The use of silicon nitride ceramic ball as the rolling body greatly improves the service life
The use of special grease to meet the stable operation of more than 12000 RPM
Use polymer nylon retainer to reduce friction and noise
Improve reliability and reduce operating costs

DARM special bearings for oil-free air compressors
In order to meet the special requirements for bearings in the emerging industry of oil-free air compressors in China, DARM has designed a new type of oil-free special bearings, and the large-sized anti-wear bearings can easily bear all the loads to ensure the normal operation of the main engine.
advantage
Anti-wear heat treatment process, greatly improve the service life
Special inner and outer diameter design, can easily bear all the load
Special grease is used to ensure smooth operation of the equipment
High sealing performance, low noise

DARM special bearings for gasoline engine
Gasoline engine is a kind of machine widely used in people's lives, and it has higher requirements for bearings. The special engine bearings designed by DARM greatly enhance the ability to resist foreign body rolling and fully meet the special working environment of the engine.
advantage
The use of carbonitriding heat treatment technology greatly enhances the ability of resisting foreign body rolling and prolonging the service life
Low vibration and noise to ensure smooth operation
Suitable for any type of oil lubrication


DARM special bearings for automotive generators
In order to meet the requirements of high temperature resistance, low noise and high sealing performance of bearings for automotive generators, DARM designed a new type of special bearings for automotive generators, using a special heat treatment process and high temperature resistant rubber seals, so that the bearings can still operate easily in the working environment of -40ºC -180ºC to ensure the smooth operation of automotive generators.
advantage
Low vibration, low noise
Special heat treatment process, improve the service life
High temperature rubber seals are used to improve sealing performance and prevent aging
The use of special grease, so that the bearing in the working environment of -40ºC -180ºC can still easily run


DARM special bearings for robot
With the rapid development of modern industry, industrial robots have quietly risen, and the new thin wall robot special bearings designed by DARM can withstand comprehensive loads in axial, radial, overturning and other directions to ensure more flexible and accurate robot operation.
Advantages: 
Low friction torque, high rigidity, good rotation accuracy; 
High precision, strong bearing capacity; 
Miniaturization, lightweight; 
Noiseless.

DARM special bearings for the automotive tension pulley
In order to meet the requirements of the Chinese automotive industry for the vibration, noise and life of the automotive tension pulley, the new special bearings designed by DARM reduce the vibration and noise level of the tension wheel in any application, while also extending the service life.
advantage
Low vibration and noise to ensure smooth operation
Use special greases to ensure proper lubrication at high rotational speeds
Use high temperature rubber seals to ensure sealing performance, prevent aging and extend life


DARM special bearings for air compressor
For the air compressor, the bearing is a very important part, the bearing is good or bad, directly affect the life of the air compressor. The new air compressor bearings designed by DARM ensure the smooth operation of air compressors in any application.
Advantages: 
Low vibration and noise to ensure smooth operation; 
Suitable for any type of oil lubrication; 
Anti-wear heat treatment process, greatly improve the service life.

DARM 62200 series bearings
Mainly used in storage tank, wire peeling machine, stir-frying machine, gear, impact testing machine, horizontal sawing machine, trap, packaging machinery, magnetic element, strength testing machine, thread processing machine, high purity water production equipment, mechanic equipment, vehicle lights and other equipment.
advantage
It has superior axial carrying capacity
Low vibration and noise to ensure smooth operation
Use special greases to ensure proper lubrication at high rotational speeds
Use high temperature rubber seals to ensure sealing performance, prevent aging and extend life

  DARM high-speed heavy-duty 6400 series bearings
Mainly used in high-speed heavy-duty fans, construction machinery, agricultural machinery, machine tools, heavy-duty motors, metal cutting machinery, lifting machinery and so on.
advantage
With high speed, ultra-high radial and axial bearing capacity
Low vibration and noise to ensure smooth operation
Use special greases to ensure proper lubrication at high rotational speeds
Use high temperature rubber seals to ensure sealing performance, prevent aging and extend life


DARM special bearings for power tools
Power tools have brought great convenience to people's lives, but a good power tool cannot be separated from a good bearing. DARM designed special bearings for power tools, with the advantages of high speed, ultra-low noise, ultra-long life. The rotating speed can be as high as 30,000 revolutions, and the noise can reach ZV4 level or above.
Advantages: 
High speed, the speed reaches 30000 RPM or more; 
Low vibration and noise, bring good customer experience; 
The use of special materials and new processes to extend the service life
Improve reliability and reduce end-customer costs.

DARM special bearings for NEVs motor
In order to meet the requirements of China's new energy vehicle motor industry for motor speed, life, vibration, noise, energy consumption, the special deep groove ball bearings designed by DARM for new energy vehicle motor , can meet the motor in the working condition of 15,000 RPM without noise, while the use of special materials and new processes to ensure the service life of the product.
Advantages: 
High rotating speed, to ensure that the NEVs motor 15,000 rotation worry-free operation; 
Low vibration and noise to ensure smooth operation of the motor
Less bearing friction, improve motor efficiency and reduce motor energy consumption
The use of special materials and new processes to extend the service life
Improve reliability and reduce end-customer costs


DARM special bearings for automotive transmission
DARM designed the special bearings for automotive transmission, using high purity bearing steel, through carbonitriding heat treatment and ultra-low temperature freezing processing manufacturing, with high speed, low noise, long life advantages.
advantage
Low vibration and noise, bring good customer experience
The use of special materials and new processes to extend the service life
Improve reliability and reduce end-customer costs


DARM special bearings for automotive steering system
The special bearings for automotive steering system designed by DARM are manufactured by special process according to the requirements of human control comfort and safety, and have the advantages of high precision, no sound and ultra-long life.
advantage
Low friction torque, high rigidity, good rotation accuracy
High precision, strong bearing capacity
Miniaturization, lightweight
noiseless
 

 

 

 

Detailed Photos

The Use of the Bearing
Essential Tips for Proper Use
Rolling bearings are precision components and must be handled with care. Regardless of their high performance, improper use can lead to inefficiencies. Below are key points to ensure optimal use of bearings.
(1) Maintain Cleanliness of Bearings and Surrounding Areas
Even minute dust particles invisible to the human eye can damage bearings. Always maintain a clean environment to prevent dust corrosion.
(2) Handle Bearings with Care
Strong impacts can cause scars and indentations, leading to potential accidents. Handle with special caution to avoid such damage.
(3) Utilize Appropriate Operating Tools
Avoid using hammers or direct heavy taps on bearings or sleeves. Instead, use appropriate tools like presses or heating methods.
(4) Protect Bearings from Rust Corrosion
Human sweat can cause rust on bearings. Ensure hands are clean and dry before handling, and consider wearing gloves to prevent corrosion.
(5) Ensure Handler Familiarity with Bearings
(6) Establish Comprehensive Bearing Handling Criteria
· Bearing Storage
· Cleaning of Bearings and Surroundings
· Dimension Inspection of Mounting Parts
· Machining Quality Assurance
· Proper Mounting Procedures
· Post-Mounting Inspection
· Disassembly Procedures
· Maintenance Protocols
· Lubrication Best Practices
 

Installation Instructions

 

Bearing Mounting
Precautions for Proper Mounting of Bearings
1) Bearing Preparation
Bearings should remain unpacked until just before mounting, as they are treated with anti-corrosion oil and wrapped in anti-corrosion paper. This oil also serves as an excellent lubricant. For general purposes, you can directly use grease-filled bearings without any cleaning. However, bearings intended for instruments or high-speed rotation must be meticulously cleaned with filtered oil to remove the anti-corrosion oil. Be aware that these cleaned bearings are prone to corrosion and should not be stored for long periods.
2) Inspection of Shafts and Housings
Clean the shaft and housing thoroughly to ensure there are no scratches, machine burrs, or abrasive particles inside the housing. Next, compare the dimensions, form, and machining quality with the technical drawings to ensure they meet the required specifications.

Chart 1: Measurement Locations for Shaft Diameter Chart 2: Measurement Locations for Housing Bore Diameter

As depicted in Chart 1 and Chart 2, multiple locations on the shaft and housing bore diameters should be carefully inspected. Ensure the perpendicularity between the shaft, housing fillet dimension, and shoulder is accurate.
Before mounting the bearing, spray mechanical oil on the fitting surface after thoroughly checking the shaft and housing.

Bearing Storage
Before leaving the factory, the bearing is sprayed with appropriate rust-inhibiting oil and packed in rust-inhibiting paper. The bearing's quality is assured as long as the packaging remains intact.
For long-term storage, if the humidity is less than 65% and the temperature is around 20°C, store the bearings on shelves at least 30cm above the ground.
Additionally, storage areas should avoid direct sunlight and contact with cold walls.

Pictures About Packaging
 

 

 

 

Company Profile

Our Advantages

 

1. World-Class Bearing Excellence: We deliver all types of indigenous bearings with world-class quality, ensuring top-tier performance for our customers.
2. OEM and Non-Standard Bearings: With our extensive industry knowledge and connections, we easily fulfill any requirements for non-standard bearings.
3. Genuine Products, Superior Quality:Our company consistently proves its commitment to 100% quality with genuine, top-of-the-line products.
4. Comprehensive After-Sales Service and Technical Support:We provide thorough after-sales service and technical assistance tailored to meet each customer's specific needs.
5. Rapid Delivery: Our streamlined supply chain ensures just-in-time delivery, getting your products to you exactly when you need them.
SAMPLES
1. Sample Quantity: 1-10 pieces available.
2. Free Samples: Availability depends on the model number, material, and quantity. Some samples may require
clients to cover the sample charge and shipping costs.
3. For full protection of your sample order, it's best to start with Trade Assurance.

CUSTOMIZED
We accept customized logos or drawings to meet your specific needs.

MOQ
1. Minimum Order Quantity: 10 pieces for standard bearings.
2. Minimum Order Quantity: 1,000 pieces for customized brand bearings.

OEM POLICY
1. We can print your brand (logo, artwork) on the shield or laser engrave your brand on the shield.
2. We can customize your packaging according to your design.
3. All copyrights belong to clients, and we promise not to disclose any information.