Rubber bush suspension

Types of Rubber Bush Suspension

Rubber bush suspension is a vital part of most vehicles. It connects the chassis to the axles and helps to control the wheels. It also helps to maintain the stability of the vehicle. There are different types of rubber suspension bushes. They include the following:

• Control arm bush

  Control arms are important parts of rubber bush suspensions. They link the chassis to the wheels. Besides, they help with the up-and-down motion of the wheels. This allows the wheels to follow the road's surface without disturbing the vehicle's body. Control arm bushes wear out after using them for a long time. When this happens, the control arms will not work well. This is because the rubber in the bushes becomes loose. As a result, drivers will experience noise, steering problems, and vibrations. Replacing the bushes can help to solve these problems.

• Leaf spring bush

  Leaf springs are important for vehicles that carry a lot of loads, like trucks and buses. These vehicles use leaf springs for their suspension. The leaf springs help to support the weight and balance the vehicles. Rubber leaf spring bushes fit between the leaf springs and the vehicle's chassis. This is done to prevent noise and vibrations. Leaf spring bushes can last for many years. However, factors like bad roads and heavy loads can make them wear out faster. Worn-out leaf spring bushes can cause the vehicle to shake. This is because the leaf springs will not be properly aligned. Changing the bushes will help to align the leaf springs properly and stop the shaking.

• Anti-roll bar bush

  Vehicles use anti-roll bars to prevent them from rolling over when they make sharp turns. This bar links the front and rear wheels. It resists the wheels from turning at different speeds. An anti-roll bar bush fits between the anti-roll bar and the vehicle's chassis. It helps to reduce noise and vibrations from the bar. Worn-out anti-roll bar bushes can affect the vehicle's handling. This is because the bar will not work well. Drivers may notice noise when making turns. They may also feel the car is loose when turning. Replacing the bushes can help to solve these problems.

• Shock absorber bush

  Shock absorbers control the bounce of the suspension. They help to make the ride smooth and comfortable. Rubber bushes fit between the shock absorbers and the control arms. They help to reduce noise and vibrations. Worn-out shock absorber bushes can cause noise and vibrations. The vehicle's ride will not be smooth. This is because the bushes prevent properly noise and vibrations from the shocks.

Specification & Maintenance of Rubber Bushing Suspension

There are several specifications to consider when choosing a rubber bush suspension for a vehicle.

• Size

  Rubber bushing come in different sizes. The size determines the fitment of the bushing to the vehicle. The sizes are always given in millimeters or inches. For example, a bushing may have an inner diameter of 20 mm and an outer diameter of 30 mm.

• Shape

  Rubber bushing comes in different shapes. The shapes include circular, square, and rectangular. The shape of the bushing will depend on the component it is meant to fit on.

• Application

  Different rubber bushing suspensions are designed for different vehicles and specific parts of the suspension system. For example, some bushings are designed for control arms, while others are for the chassis. The bushings designed for specific applications have improved performance.

• Hardness

  Hardness is an important specification when it comes to rubber bushing suspension. The hardness is measured on the Shore A scale. The hardness determines the level of damping and noise reduction the bushing will provide. A bushing with a hardness of 50-60 Shore A is suitable for most applications.

• Mounting Method

  Rubber bush suspensions come with different mounting methods, such as bolted or pressed fit. The mounting method is important since it determines the fitment process of the bushing.

• Warranty

  Some manufacturers offer a warranty on the rubber bushing. The warranty is an assurance of the quality and performance of the bushing.

Maintaining the rubber bush suspension is important in order to avoid premature failure. Here are some maintenance tips:

• Visual Inspection

  Check the bushing for any signs of wear or damage. Look for cracks, tears, or splitting. Also, check for any signs of oil or grease contamination.

• Check Suspension Performance

  Take a look at the vehicle's ride quality and handling. If the rubber bushing is in good condition, the vehicle should have a smooth ride and stable handling. A worn-out bushing will cause the vehicle to have a rough ride and unstable handling.

• Check for Noise

  A rubber bush suspension is designed to operate smoothly and quietly. If there is noise coming from the suspension, the bushing may be worn out. The noise from the bushing may be accompanied by a rough ride.

• Check for Play

  Check if there is any play between the bushing and the components it is mounted on. If there is play, the bushing may be worn out and needs to be replaced.

• Inspect the Suspension Components

  When inspecting the bushing, also inspect other suspension components such as control arms, shock absorbers, and springs. A worn-out suspension component can affect the performance of the bushing.

• Check the Wheel Alignment

  A worn-out rubber bush suspension can cause misalignment of the wheel. If the vehicle's wheel is not aligned, the bushing may be worn out and needs to be replaced.

How to choose rubber bush suspension

When sourcing rubber bush suspensions, consider these factors.

• Vehicle Type

  Consider the vehicle type and its weight. For heavy vehicles like trucks, focus on larger and more robust rubber suspension bushes. For light vehicles, smaller and lighter rubber bushes will work.

• Size and Dimensions

  Get the correct size and dimensions of the bushings to be replaced. This includes the inner and outer diameter and the width of the bush. The right size bush will ensure a perfect fit and reduce the risk of failure.

• Quality and Durability

  Look for durable bushes made from high-quality materials. High-quality bushes might cost more, but they will last longer and give better value for money. Consider the expected lifespan and the level of wear and tear in the bushings before choosing your rubber bush suspension.

• Type of Vehicle Suspension

  Vehicles have different suspension systems. Some have struts, while others have wishbones. Find out the type of suspension system in the vehicle to use. This will help choose the right bushings that will fit into the suspension system.

• Brand and Manufacturer

  Consider the brand and manufacturer of the rubber bush suspension. Choose reputable brands that are known to produce quality suspensions. Also, consider the warranty and customer support offered by the manufacturer.

• Price

  Set a budget for the rubber bush suspension. Compare the prices of different brands and manufacturers. Do not rush to choose the cheapest suspensions, as they may be of low quality. Look for suspensions that give the best value for money.

• Feedback and Reviews

  Check the feedback and reviews of previous customers that bought the rubber bush suspensions. This will help know the experiences of other people and help in making a more informed decision.

How to DIY and Replace Rubber Bush Suspension

Most rubber suspension bush replacements require mechanical knowledge and the right tools. Even though it is a straightforward process, bush replacements can take a lot of time. Here is how to replace rubber bush suspension:

• Preparation

  The car should be parked on a flat surface. The handbrake is engaged, and the wheels are chocked. The vehicle should be raised with a jack, and the rubber bushing that needs to be replaced is accessible.

• Removal

  All the nuts and bolts that hold the bush to the car are removed. A bushing removal tool or a press is used to get the bush out. If the bush is stuck, a knife can be used to cut it out.

• Cleaning

  The area where the new bushing will be fitted is cleaned. This ensures that there is no rust or dirt in the mounting hole.

• Installation

  The new bush is put in the mounting hole. A bushing driver or a press is used to get it in. The bush is turned until it fits perfectly in the hole. The bolts or nuts are tightened to hold the bush in place.

• Checking

  The suspension is checked to make sure the bush is fitted correctly. The vehicle is lowered, and the bush is looked at to see if it is in the right position.

Q and A

Q1: How long does a rubber bush last?

A1: There is no specific time a rubber bush lasts. It depends on various factors like driving conditions, the type of vehicle, and the quality of the bush itself. However, a rubber bush can last between 45000 to 100000 miles.

Q2: What are the signs of a failing rubber bush?

A2: A failing rubber bush has several signs. The first one is noise, like squeaking or clunking when the vehicle is in motion. The other sign is poor vehicle handling and stability. There is also premature tire wear and visible damage to the bush. Vibration during driving is also a sign of a failing rubber bush.

Q3: Can one drive with a failed rubber bush?

A3: Yes, one can drive with a failed rubber bush. However, the condition can worsen with time. Eventually, the rubber bush failure can damage other components of the vehicle. This will make the repair costly. It is advisable to replace the rubber bush as soon as possible.

Q4: What is the difference between a rubber and a polyurethane bush?

A4: The difference between a rubber and a polyurethane bush is that the former is made from polyurethane. Polyurethane is more durable than rubber. It lasts longer and can withstand harsh conditions. A polyurethane bush is more expensive than a rubber bush.