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SPHERICAL PLAIN BEARING

［Backlash-free Transmission · Misalignment Compensation］
High-precision zero-backlash, compensates installation errors, damping & overload protection, easy installation. OEM available.
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Product Characteristics：

1.High Efficiency and Stable Power Transmission

It can accurately transmit the power of motors and reducers with extremely low transmission loss, no obvious power attenuation during operation, and can maintain a stable transmission state for a long time. It is suitable for various industrial transmission scenarios such as high speed and heavy load, avoiding equipment malfunction caused by power loss.

2.High Torque Bearing and Strong Impact Resistance

Made of high-quality steel, it has high structural strength, can bear large rated torque, and has good impact resistance. It can cope with sudden situations such as equipment startup/shutdown and load mutation, avoiding coupling fracture and damage, and is suitable for heavy-duty working conditions such as heavy industry and mining.

3.Buffering, Shock Absorption and Good Noise Reduction

Some models are equipped with elastic components (such as serpentine springs, elastic sleeves), which can absorb vibration and impact during equipment operation, alleviate rigid impact between the motor and load, reduce operating noise, improve the working environment, and extend equipment service life.

4.Wear-Resistant, Durable and Easy to Maintain

Key components undergo heat treatment processes such as quenching and tempering, with high surface hardness, wear resistance and deformation resistance, and long service life. Daily maintenance is simple, only regular greasing and bolt tightness inspection are required, without complex disassembly and maintenance, reducing maintenance costs.

5.Wide Application Range

Suitable for various industrial equipment, widely used in engineering machinery, metallurgy, mining, papermaking, conveyor equipment, agricultural machinery, chemical industry and other industries. It can match different models of motors and reducers to meet the transmission needs of different working conditions.

6.Non-Standard Customization Supported, Strong Adaptability

According to the customer's equipment size and working condition requirements, non-standard customization of the coupling's outer diameter, shaft hole diameter, length, keyway specification, connection method, etc. is supported, which perfectly meets the customer's personalized needs and solves the transmission matching problem of special equipment.


Material：

1.45# Carbon Steel

High strength and good toughness, easy to machine with high precision. Hardness and wear resistance can be improved by quenching. It has high cost performance, widely used for medium-high speed and medium-heavy load transmission. Prone to rust in humid environments, galvanizing, blackening or anti-rust oil treatment is required.

2.Alloy Structural Steel 40Cr / 20CrMnTi

Excellent comprehensive mechanical properties. High hardness, wear resistance, impact resistance and fatigue resistance after carburizing and quenching. It bears large torque without deformation or fracture, ideal for high-speed, heavy-duty and precision industrial transmission. Higher cost and requires professional heat treatment.

3.Stainless Steel 304 / 316

Rust-proof, acid and alkali corrosion resistant with high sanitary standard. Suitable for humid, chemical, seaside, food and medical clean environments. Rust-free and maintenance-free, only applicable for light and medium load, not for high torque and impact load.

4.Aluminum Alloy 6061 / 6063

Light weight, low inertia and high machining precision. Anodizable for corrosion resistance. Sensitive start-up and stable high-speed operation, widely used in small automation and light machinery for high-speed light-load couplings. Low hardness, not suitable for heavy load and high torque.

5.Gray Cast Iron HT200 / HT250

Low cost, easy casting and machining, good shock absorption and noise reduction, stable dimension and deformation resistance. Suitable for low-speed and light-load general transmission equipment. Poor toughness and weak impact resistance, not suitable for high speed and heavy load; easy to rust in damp conditions.

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疑问解答

FAQ:

Q：After installing the coupling, why are the two shafts eccentric and vibrate during operation?

A ：① The coaxiality is not calibrated during installation, with radial, angular or axial deviations; ② The fit between the coupling inner hole and the shaft is too loose/tight, causing offset during operation; ③ The base is not firmly fixed and loosens during operation.


Q ：How to solve the loud noise and abnormal sound when the coupling is running?

A ：① The two shafts are eccentric and offset during operation, re-calibrate the coaxiality; ② The elastomer (polyurethane/rubber pad) is worn or aged, replace with a new elastomer; ③ Bolts are loose or the coupling is worn, tighten the bolts or replace worn parts; ④ Insufficient lubrication, add special grease.


Q ：What is the general service life of a coupling? When does it need to be replaced?

A ：Under normal working conditions, the service life of carbon steel/alloy steel couplings is 3-5 years, and that of stainless steel and aluminum alloy couplings is 5-8 years; the elastomer needs to be replaced every 1-2 years. Replace immediately if the following occurs: coupling deformation, cracking, severe wear; unresolved abnormal noise and vibration during operation; elastomer aging and damage; frequent transmission slipping and speed loss.


Product Characteristics：

1.High Efficiency and Stable Power Transmission

It can accurately transmit the power of motors and reducers with extremely low transmission loss, no obvious power attenuation during operation, and can maintain a stable transmission state for a long time. It is suitable for various industrial transmission scenarios such as high speed and heavy load, avoiding equipment malfunction caused by power loss.

2.High Torque Bearing and Strong Impact Resistance

Made of high-quality steel, it has high structural strength, can bear large rated torque, and has good impact resistance. It can cope with sudden situations such as equipment startup/shutdown and load mutation, avoiding coupling fracture and damage, and is suitable for heavy-duty working conditions such as heavy industry and mining.

3.Buffering, Shock Absorption and Good Noise Reduction

Some models are equipped with elastic components (such as serpentine springs, elastic sleeves), which can absorb vibration and impact during equipment operation, alleviate rigid impact between the motor and load, reduce operating noise, improve the working environment, and extend equipment service life.

4.Wear-Resistant, Durable and Easy to Maintain

Key components undergo heat treatment processes such as quenching and tempering, with high surface hardness, wear resistance and deformation resistance, and long service life. Daily maintenance is simple, only regular greasing and bolt tightness inspection are required, without complex disassembly and maintenance, reducing maintenance costs.

5.Wide Application Range

Suitable for various industrial equipment, widely used in engineering machinery, metallurgy, mining, papermaking, conveyor equipment, agricultural machinery, chemical industry and other industries. It can match different models of motors and reducers to meet the transmission needs of different working conditions.

6.Non-Standard Customization Supported, Strong Adaptability

According to the customer's equipment size and working condition requirements, non-standard customization of the coupling's outer diameter, shaft hole diameter, length, keyway specification, connection method, etc. is supported, which perfectly meets the customer's personalized needs and solves the transmission matching problem of special equipment.


Material：

1.45# Carbon Steel

High strength and good toughness, easy to machine with high precision. Hardness and wear resistance can be improved by quenching. It has high cost performance, widely used for medium-high speed and medium-heavy load transmission. Prone to rust in humid environments, galvanizing, blackening or anti-rust oil treatment is required.

2.Alloy Structural Steel 40Cr / 20CrMnTi

Excellent comprehensive mechanical properties. High hardness, wear resistance, impact resistance and fatigue resistance after carburizing and quenching. It bears large torque without deformation or fracture, ideal for high-speed, heavy-duty and precision industrial transmission. Higher cost and requires professional heat treatment.

3.Stainless Steel 304 / 316

Rust-proof, acid and alkali corrosion resistant with high sanitary standard. Suitable for humid, chemical, seaside, food and medical clean environments. Rust-free and maintenance-free, only applicable for light and medium load, not for high torque and impact load.

4.Aluminum Alloy 6061 / 6063

Light weight, low inertia and high machining precision. Anodizable for corrosion resistance. Sensitive start-up and stable high-speed operation, widely used in small automation and light machinery for high-speed light-load couplings. Low hardness, not suitable for heavy load and high torque.

5.Gray Cast Iron HT200 / HT250

Low cost, easy casting and machining, good shock absorption and noise reduction, stable dimension and deformation resistance. Suitable for low-speed and light-load general transmission equipment. Poor toughness and weak impact resistance, not suitable for high speed and heavy load; easy to rust in damp conditions.

详情2

公司展示1

公司展示

物流

疑问解答

FAQ:

Q：After installing the coupling, why are the two shafts eccentric and vibrate during operation?

A ：① The coaxiality is not calibrated during installation, with radial, angular or axial deviations; ② The fit between the coupling inner hole and the shaft is too loose/tight, causing offset during operation; ③ The base is not firmly fixed and loosens during operation.


Q ：How to solve the loud noise and abnormal sound when the coupling is running?

A ：① The two shafts are eccentric and offset during operation, re-calibrate the coaxiality; ② The elastomer (polyurethane/rubber pad) is worn or aged, replace with a new elastomer; ③ Bolts are loose or the coupling is worn, tighten the bolts or replace worn parts; ④ Insufficient lubrication, add special grease.


Q ：What is the general service life of a coupling? When does it need to be replaced?

A ：Under normal working conditions, the service life of carbon steel/alloy steel couplings is 3-5 years, and that of stainless steel and aluminum alloy couplings is 5-8 years; the elastomer needs to be replaced every 1-2 years. Replace immediately if the following occurs: coupling deformation, cracking, severe wear; unresolved abnormal noise and vibration during operation; elastomer aging and damage; frequent transmission slipping and speed loss.