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Automotive Bearings


On this page, we aim to provide you with valuable information about automotive bearings. We will discuss various aspects of automotive bearings, including their classification, application areas, and factors to consider when selecting the right bearing.

What Is An Automotive Bearing?

Automotive bearing is an important car part, directly affecting performance, safety, and comfort. Automotive bearings are mainly divided into wheel bearings, transmission bearings, engine bearings, steering system bearings, etc. They play different roles in different parts of the car.

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Classification Of Automotive Bearings And How To Use Them In Automobiles?

The application parts of automotive bearings are the engine, transmission system, steering system, auxiliary parts, etc. Automotive engine bearings are divided into internal bearings for crankshaft and camshaft support, needle roller bearings for valve rocker arms, and rolling bearings for timing sprockets. The steering system bearings include a steering column tube bearing, a small ball bearing for the EPS motor and reducer, a four-point contact ball bearing for the circulating ball power system, etc.

Application areaBearing type
Engine bearingGenerator bearingsGenerator overrun pulley bearingsTension wheel bearingsWater pump bearingsAir conditioner compressor bearingRocker arm bearingsCrankshaft bearingsSupercharger bearings
Drive train bearingsWheel bearingsTransmission bearingsClutch release bearingsDrive shaft support bearingsDifferential bearings

Steering system bearingsWiper motor bearingsGlass lift motor bearingsABS motor bearingsElectric seat bearingsAir conditioning air supply motor bearingsBrake system bearings

Microminiature bearings for automotive auxiliary parts or electrical appliancesSteering Gear BearingsSteering column bearings

The structure of new energy vehicles bearing demand changes, but the total amount remains unchanged. As the energy of pure electric vehicles is transmitted through flexible wires instead of rigid couplings and rotating shafts, the engine and transmission with large bearing usage are omitted in pure electric vehicles. At the same time, to meet the requirements of driving, environmental protection, comfort, safety, etc., a large number of new demand for drive motor bearing products on electric vehicles.

We Can Provide You With All Kinds Of Automotive Bearings

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Wheel Bearings: TFL-Bearings offers third and fourth-generation automotive wheel bearing units with high integration, easy installation, and simple maintenance. We have also developed tapered roller wheel bearings with an anti-seize function that can maintain normal operation in case of insufficient lubricant supply or low temperatures, improving product safety and durability.

Transmission Bearings: TFL-Bearings provides bearings for various types of transmissions, such as manual transmissions, automatic transmissions, and dual-clutch transmissions that are impact-resistant, fatigue-resistant, and wear-resistant. tFL-Bearings has also developed transmission needle roller hubs with low friction torque and noise characteristics.

Engine bearings: TFL-Bearings provides bearings for various types of engines, such as gasoline engines, diesel engines, turbocharged engines, etc., with characteristics of heat resistance, wear resistance, fatigue resistance, etc. TFL-Bearings has also developed engine crankshaft bearings with low friction, low noise, and low vibration, which can reduce engine fuel consumption and emissions and improve engine performance and life.

Steering system bearings: TFL-Bearings provides bearings for various types of steering systems, such as mechanical steering, hydraulic power steering, and electronic power steering, with high rigidity, high precision, high reliability, etc. TFL-Bearings has also developed steering column bearings with low friction torque and low noise characteristics, which can improve steering sensitivity and comfort.

Automotive alternator bearings: single-row sealed ball bearings, mainly subject to centripetal force, required in the speed of more than 2000r/min, the temperature is greater than 180 ℃ conditions can still be reliable operation, the ring and rolling body using high purity GCr15 manufacturing, heat treatment after the hardness requirements of 58 ~ 64 HRC, the cage is used nylon PA46, the seal ring is generally used acrylate rubber ACM.

Automobile air conditioning compressor electromagnetic clutch bearing: double row angular contact ball bearing, outer ring rotation, air conditioning pulley speed up to 7000 ~ 13000r/min, the highest temperature of 160 ℃, the same material, the cage from the normal single spherical pocket hole part into a cylindrical surface.

Tension pulley and idler bearing: high-performance sealed ball bearing, the former acts on the loose side of the synchronous transmission belt, the latter acts on the right side of the synchronous transmission belt, the material is the same as above, the cage is available in engineering plastic, also available in 08 steel or 10 steel manufacturing, the seal ring is made of ACM or FPM (fluorine rubber).

Automotive water pump shaft bearing: generally double row ball bearing, radial size is smaller than the general bearing. It is essentially a simplified structure of the double bearing system, two bearing support without the inner ring, rolling body raceway directly on the shaft, two bearing support outer ring made of a whole, the two sides of the ring with seals sealed, its roller is usually made of high chromium bearing steel, shaft, outer ring material using carburized steel or high chromium bearing steel manufacturing.

Our applications in the automotive industry are not limited to the above areas but also involve other components of automobiles, such as clutches, brake systems, air conditioning systems, etc.

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What Brand Of Automotive Bearing Manufacturer Is Good?

Look for top-tier manufacturers like Mayasaf, MOOG, NTN Wheel Bearing, SKF, Timken Group, PFI, AC Delco, Detroit Axle, AA Ignition, and Timken. Many brands mentioned above have years of background experience and are known for manufacturing high-quality car parts.

TFL-Bearings, an automotive bearing manufacturer with ten years of production experience, says "quality" is our pursuit, and "relentless pursuit of quality" is our aim. Our products are exported to more than 30 countries in the Middle East, Europe, and America and have been supported by our customers. At the same time, our products can be interchanged with many bearing brands to reduce the cost of customers' needs.

Wheel Bearing FAQs

Q: What are the different types of automotive bearings?

There are several different types of automotive bearings, including roller bearings, spherical bearings, tapered roller bearings, and thrust bearings. Each type has specific characteristics and areas of application.

Q: What are the reasons for the deterioration of automotive bearings?

1, Poor quality wheel bearings - Wheel bearings are constantly under great stress. Wheel bearings made from poor-quality materials may need to be better heat treated, leading to premature wear and failure.

2, Faulty installation - Unsuitable tools (such as hammers or impact wrenches) may damage the wheel end bearing's outside and inside, leading to premature wheel bearing failure.

3, Driving conditions - Driving in deep water or mud may cause wheel bearing failure. Water, mud, or other contaminants (such as dirt or road salt) may pass through the seals and into the bearings, contaminating the grease and wearing the bearings.

Q: What factors should be considered when selecting automotive bearings?

Several factors should be considered when choosing an automotive bearing. The following are some of the key factors to consider:

1, Load capacity: Determine the maximum load the bearing will be subjected to in your application. The bearing should be able to withstand the expected load without premature failure.

2, Speed rating: Consider the speed at which the bearing will operate. The rated speed of the bearing should exceed the maximum speed of the application to prevent overheating and premature wear.

3, Durability and service life: Look for bearings that can withstand the specific operating conditions of your application. Consider factors such as temperature, humidity, and contaminants to which the bearing may be exposed. Longer life and durability will reduce maintenance and replacement costs.

4, Friction and efficiency: Choose low-friction and high-efficiency bearings to minimize energy loss and maximize vehicle performance.

5, Fit and compatibility: ensure that bearing dimensions, tolerances, and mounting requirements are compatible with the vehicle's axle or hub assembly.

6, Sealing and protection: Consider the level of sealing and protection the bearing provides. This is particularly important in automotive applications where bearings may be exposed to water, dirt, and other contaminants.

7, Noise and vibration: Select bearings that provide smooth, quiet operation to enhance comfort and the overall driving experience.

8, Cost: Evaluate the cost-effectiveness of the bearing, considering factors such as initial purchase price, maintenance requirements, and potential downtime costs.

It is recommended to consult TFL-Bearings online engineers for assistance, and we can help you select the best bearing for your specific automotive application.

Q: If one wheel bearing is broken, should I replace both wheel bearings?

No need; You need to replace the bad one. To be on the safe side, you need to keep the following two good habits:

1, Regular inspection: To maximize safety and reliability, no matter how old the vehicle is, it is important to check the rear wheel bearings frequently and pay attention to whether there are warning signs of bearing wear, including any frictional noise when turning or any abnormal deceleration of the suspension combination wheel when turning. For rear-wheel drive vehicles, it is recommended that the rear wheel bearings be lubricated when the vehicle reaches 38,000 kilometers. Check the bearings and replace the oil seal when replacing the brake system.

2, Noise treatment: When you hear noise from the bearing, first find the location where the noise occurs. Many moving parts may produce noise, or some rotating parts may be in contact with non-rotating parts. If it is confirmed that the bearing is noisy, it may be damaged and must be replaced.