3 leg bearing puller

Types of 3-leg bearing puller

There are many kinds of bearing pullers, but the most popular are the 3-leg bearing pullers. A 3-leg bearing puller is a mechanical tool used to remove bearings or press-fit parts from a workpiece. The 3-leg puller consists of three legs arranged in a circular pattern like a tripod. The three legs are usually adjustable to fit different bearing sizes. The 3-leg bearing puller is further divided into two subcategories:

• Manual 3-leg bearing puller

  The manual 3-leg bearing puller uses physical force applied to the screw to remove bearings. The screw is turned using a wrench or socket drive. Some manual bearing pullers come with interchangeable legs. This feature allows users to fit the puller on different bearings.

• Hydraulic 3-leg bearing puller

  The hydraulic 3-leg bearing puller uses hydraulic power to remove large and heavy bearings. It consists of a hydraulic cylinder that generates a high force. The hydraulic puller requires minimal effort from the operator. Also, it can remove bearings without damaging the surrounding parts.

Specifications & Maintenance of 3-Leg Bearing Puller

Specifications for the 3-leg bearing puller include the following:

• Size

  The size of the 3-jaw bearing puller is an important consideration when selecting the right one for a specific application. They come in different sizes, generally ranging from 4 inches (100 mm) to 12 inches (300 mm) or more. A larger puller will be able to remove larger bearings, while a smaller puller will be able to remove smaller bearings. When selecting a bearing puller, users need to consider the size of the bearings they will be removing.

• Capacity

  The capacity of the 3-leg bearing puller is another important specification. The capacity is usually expressed in terms of the maximum force that can be exerted without damaging the tool or the bearing being removed. The capacity of the pullers typically ranges from 500 pounds (225 kg) to 5000 pounds (2250 kg) or more. When selecting a bearing puller, the user should consider the maximum force needed to remove the bearings.

• Material

  The 3-leg bearing puller is usually made from steel or other alloys. Steel is a strong material that can withstand the forces exerted during bearing removal. Other alloys may be used, but they may not be as strong as steel.

• Leg length

  The leg length of the 3-jaw bearing puller is also an important specification. The legs of the puller usually range from 2 inches (50 mm) to 6 inches (150 mm) or more. The length of the legs determines how deep the puller can reach into the bearings.

It is important to properly maintain the 3-leg bearing puller to ensure its longevity and optimal performance. Proper maintenance can also help prevent accidents and injuries that may occur due to improper use of the tool. Here are some maintenance tips:

• Cleaning

  The 3-leg bearing puller should be cleaned after every use. Users should use a soft cloth to wipe off grease, dirt, and dust from the surface of the tool. A soft brush can also be used to remove dirt from the hard-to-reach parts of the puller. Cleaning helps to prevent the build-up of dirt and dust, which can cause the tool to wear out quickly.

• Lubrication

  The 3-leg bearing puller should be lubricated regularly to ensure smooth operation. A small amount of grease should be applied to the joints and moving parts of the puller.

• Inspection

  The 3-leg bearing puller should be inspected regularly for signs of wear and damage. Users should check the legs, arms, and threads of the tool for cracks, chips, or rust. If any damage is detected, the puller should be repaired or replaced immediately.

• Storage

  The 3-leg bearing puller should be stored in a clean, dry place away from direct sunlight and moisture. It should be kept in its original case or a suitable protective case to prevent damage.

How to choose 3-leg bearing puller

When purchasing a 3-leg bearing puller for sale, the focus should be on the customers' needs. Consider the most common bearings and the size range that will sell quickly. Opt for the pullers with the widest size range or the most common sizes that customers can use without replacing them. For example, a 3-leg puller with a capacity of 100 mm to 300 mm will be suitable for most customers. Remember to check the workload rating and avoid pullers with a lower capacity.

Additionally, consider the design features that improve the bearing puller's performance. For example, a 3-leg puller with an adjustable leg can accommodate more customers' bearings. A deep throat or long reach puller will be more suitable because it can extract bigger bearings. Also, variety is the key when it comes to choosing a 3-leg bearing puller. Stock sizes that are common, as well as some that are not so common, to cater to every customer's needs.

Choose a 3-leg bearing puller with quality construction materials. Steel is the best material for bearing pullers because it has high strength and durability. However, it is important to verify the quality of the steel. Some suppliers offer pullers made of chrome vanadium steel or carbon steel, which are ideal for heavy-duty applications.

The 3-leg bearing puller has different finishes, such as black oxide and chrome finish. Buyers should choose pullers with attractive finishes that are resistant to corrosion and wear. Corrosion resistance ensures that the tools last long and maintain their attractive looks.

Another factor to consider when buying a 3-leg bearing puller is the price. Buyers should compare prices from different suppliers to get a good deal. However, they should avoid cheap pullers that have no value. They can read customer reviews to find out the quality of the pullers from different suppliers.

For added value, wholesalers can offer pullers with carrying cases. Most customers love tools that come with a case for easy storage and portability. They may also look for pullers that come with a warranty, since some brands may offer them with warranty period.

How to DIY and Replace 3-leg bearing puller

Here are the steps for using a 3-leg bearing puller, whether on a hydraulic press or working bench.

• 1. Select the proper size and type of three-leg puller for the task based on the bearing or component's size and accessibility.
• 2. Position the puller's legs around the bearing or under the housing (for internal pullers). Ensure a firm grip without damaging surrounding components.
• 3. Center the forcing screw or spreader on the bearing's interior (for external pullers) or the shaft (for internal pullers).
• 4. Operate the puller using a wrench or appropriate tool, applying even and steady force. If using a hydraulic press, ensure even pressure is applied.
• 5. Continuously monitor the puller’s operation and the bearing’s movement. Stop if resistance is met and reassess the puller’s placement.
• 6. Once the bearing is free, retract the puller legs and remove the bearing puller.
• 7. Follow safety precautions and wear appropriate personal protective equipment (PPE) throughout the process.

Here are some tips for successfully using a 3-leg bearing puller.

• 1. Ensure the puller is in good condition, with clean and lubricated threads.
• 2. If using a hydraulic 3-leg bearing puller, ensure the oil level is sufficient, and the pump and cylinder are functional.
• 3. Always follow the manufacturer's instructions for the specific puller model being used.
• 4. Use appropriate personal protective equipment (PPE), such as safety glasses and gloves, to protect against potential hazards.
• 5. If unsure or the bearing is tightly fitted, seek professional assistance or consult a technician.
• 6. After removing the old bearing, clean the shaft or housing before installing the new bearing.

Q and A

Q1: What materials are used to make 3-leg bearing pullers?

A1: A 3-leg bearing puller can be made from different materials, including carbon steel, chrome vanadium steel, alloy steel, and stainless steel. Each material offers unique advantages. For instance, steel is known for its strength and durability, which are important in puller applications. On the other hand, stainless steel is rust and corrosion resistant, making it ideal for environments where chemical exposure and moisture are common.

Q2: How do people maintain 3-leg bearing pullers?

A2: Maintaining three-leg bearing pullers is important to ensure they last longer and function more efficiently. Users should clean the tools after every use to get rid of dirt, dust, and debris. Inspecting the puller for wear and damage is also important because it helps users identify and replace damaged components. Proper lubrication of moving parts reduces friction, preventing premature wear and tear. Users should store the pullers in a clean, dry place away from direct sunlight to prevent rust and corrosion.

Q3: Can people use 3-leg bearing pullers on electric motors?

A3: Yes, people can use three-leg bearing pullers on electric motors, particularly when removing or installing bearings on the shafts. The pullers make the process easier and quicker, reducing the risk of damaging the bearings, electric motors, or other components.

Q4: Can a 3-leg bearing puller be used for blind holes?

A4: Typically, a three-leg bearing puller is not the ideal tool for blind holes, especially if the hole lacks a bottom boss. This is because it cannot provide a push against the bottom. In such situations, people may need to use a hydraulic puller or a slide hammer puller.

Q5: Can people use 3-leg bearing pullers on truck wheel bearings?

A5: Yes, people can use three-leg bearing pullers on truck wheel bearings during the removal and installation processes. Truck wheel bearings are often press-fit components, and the puller can help disassemble and reassemble without causing damage.