A bearing removal tool, or bearing puller, is designed to safely extract bearings from shafts or housings without causing damage to the surrounding components. The specific type you need depends on whether the bearing is mounted openly (on a shaft) or is "blind" (recessed inside a housing).
Internal Puller
Internal pullers are also known as blind bearing pullers because they extract components from within blind holes or recesses. As the outside of the component isn't accessible, an internal puller grips the component from within the bearing's inner raceway, using collets and an expanding sleeve.
A bearing puller generally resembles an arcade claw machine or a heavy-duty metallic "Y" shape. It features adjustable hooked arms (or "jaws") designed to clamp around a bearing, connected to a central threaded forcing screw that pushes against the shaft to safely slide the bearing off.
Removing a bearing without a proper puller depends on its location. For blind pilot bearings, pack the cavity with heavy grease or bread and use a close-fitting dowel or socket to hammer it out via hydraulic pressure. For bearings on a shaft, pry carefully after applying heat, or disassemble the bearing entirely.
Skill 1: Bearings – 3 Rules
Manual pullers are compact, cost-effective, and ideal for light-duty applications such as automotive maintenance and small machinery repairs. Hydraulic pullers provide higher pulling force with less physical effort, making them better suited for heavy-duty, industrial, or tightly fitted bearings.
Bearing pullers generally range from $𝟏𝟓 to $𝟐𝟎𝟎, depending on the size, type, and weight capacity required.
There are two major categories of pullers: mechanical and hydraulic. Mechanical pullers are the most common type, featuring a threaded rod or spindle attached to a set of arms or jaws. These arms or jaws are designed to grip the part to be removed securely.
Definitions of wire-puller. noun. one who uses secret influence (i.e. pulls wires or strings) for his own ends. hustler, operator, wheeler dealer. a shrewd or unscrupulous person who knows how to circumvent difficulties.
The OEMTOOLS 25089 Pilot Bearing Puller is an essential tool for removing pilot bearings from crankshaft ends during clutch and transmission maintenance.
When a gear, pulley or bearing is stuck fast on a shaft, gear pullers are what mechanics turn to. Instead of prying at it or belting it with a hammer, the puller applies steady pressure to draw the part off evenly.
A bearing puller is a specialised equipment designed for the removal of bearings from shafts, housings, or other mechanical components. The puller ensures the components and parts are removed without causing damage.
Removing a bearing safely depends on its location (e.g., on a shaft or inside a blind hole). Standard mechanical procedures rely on specific tools like bearing splitters and pullers. Specialized methods—like thermal shock or the hydraulic bread/grease trick—can also be used when standard tools fail.
If your bearing is pressed into the knuckle, you'll need a bearing press or a specialized tool kit.
A bearing removal tool, or bearing puller, is designed to safely extract bearings from shafts or housings without causing damage to the surrounding components. The specific type you need depends on whether the bearing is mounted openly (on a shaft) or is "blind" (recessed inside a housing).
A puller tool is a mechanical device used to safely extract tightly fitted, "press-fit" components (like gears, bearings, pulleys, and steering wheels) from a shaft or housing without damaging them. It works by applying continuous, even mechanical or hydraulic pressure to slide the part off smoothly.
Bearing pullers extract tight bearings, gears, and pulleys from shafts and housings without causing damage. The five primary types are Jaw Pullers (versatile, 2- or 3-jaw designs), Bearing Separators (for tight, flush spaces), Blind Hole/Internal Pullers (for recessed bearings), Hydraulic Pullers (for heavy-duty jobs), and Slide Hammers (for impact extraction).
The most common types of bearing failures are Overheating, Contamination, Inadequate Lubrication (including Excessive and Incorrect Lubrication), Misalignment, Corrosion, Brinelling, Electrical Pitting, Improper Mounting, and Bad Fits.
Design Considerations for Plain Bearings
The 2:1 Bearing Ratio is officially defined as the maximum ratio of moment arm distance to bearing length which will not cause binding or prevent motion. The Binding Ratio is often displayed numerically as “2:1,” where “2” is the moment arm distance and “1” is bearing length.
The 4-bearing method is a historical maritime navigation and submarine targeting technique used to determine a target's position, speed, and course. By taking four consecutive bearing measurements at fixed time intervals (often using a hydrophone or periscope), navigators can perform geometric plotting to track a target moving at a steady speed.