How To Change Skateboard Bearings: A Step-by-Step Precision Maintenance Guide

To change skateboard bearings, remove the axle nuts with a 1/2-inch socket, slip the wheels halfway off the axle, and pry the old bearings out using the axle tip as a lever. Press new 608-standard bearings into the wheel cores by hand, push them flush using the flat shoulder of the axle, and reassemble the wheel with speed rings and spacers. Tighten the axle nut until there is minimal side-to-side play and no axial compression on the bearing shields.

Pre-Maintenance Planning: Tools, Anatomy, and Budget

Maintaining a skateboard requires an understanding of its rotational components. The standard skateboard wheel relies on a pair of 608-standard bearings, which measure 8mm inside diameter (bore), 22mm outside diameter, and 7mm width. These bearings sit within the polyurethane core of the wheel, separated by an internal spacer and protected on the outside by thin speed washers (speed rings). Over time, road grit, water, and lateral impact degrade these components, leading to increased friction, loud spinning noises, or total bearing seizure.

Replacing your bearings is a straightforward process that does not require specialized industrial machinery. However, using improper tools, like screwdrivers or hammers, can permanently damage the bearing shields, warp the inner races, or deform the urethane hubs of your wheels. Before beginning, organize your workspace and gather the necessary components to ensure a clean, precise installation.

Essential Equipment and Resource Benchmarks

• Skate Tool or Socket Wrench: A standard skate tool with a 1/2-inch socket for axle nuts and a 3/8-inch socket for mounting hardware.
• New 608 Bearings: Eight individual bearings (two per wheel) made of chrome steel, titanium, or silicon nitride ceramic.
• Speed Rings and Spacers: Eight speed rings (8mm inner diameter) and four bearing spacers (8mm x 10mm) to ensure proper load distribution.
• Cleaning Rag and Solvent: A lint-free microfiber cloth and isopropyl alcohol (90% or higher) to clean the truck axles and wheel hubs.
• Estimated Budget: $15 to $70 depending on bearing material (steel vs. high-end ceramic).
• Estimated Duration: 15 to 25 minutes of focused labor.
• Prerequisite Knowledge: Basic understanding of threaded fasteners and radial load distribution.

Step-by-Step Bearing Extraction and Installation Process

Step 1: Secure the Board and Remove the Axle Nuts

Place your skateboard on a flat, clean surface with the wheels facing upward. Use the 1/2-inch socket of your skate tool or a standard wrench to loosen the axle nut on one of the wheels by turning it counterclockwise. Keep your hand cupped over the nut to prevent the small speed rings from slipping off and rolling away.

Once the axle nut is removed, slide off the first outer speed ring and place it in a secure container. Gently pull the wheel off the axle. Note that the inner speed ring will still be resting on the base of the truck axle hanger; remove it as well to keep the axle completely clear for the extraction process.

Warning: Do not lose the speed rings. These ultra-thin washers prevent the rotating outer shield of the bearing from rubbing against the stationary axle nut and truck hanger. Operating a skateboard without them causes severe friction and will quickly ruin your new bearings.

Step 2: Pry the Old Bearings Out Using the Axle-Lever Method

If you do not own a dedicated bearing press and puller, you can safely extract the old bearings using the truck axle itself. Slide the wheel onto the exposed axle tip just far enough so that only the outermost bearing hangs onto the metal axle tip (about 7 to 8 millimeters deep).

Using the wheel as a lever, gently pry it downward at a 45-degree angle. This movement uses the step-down shoulder of the axle to catch the inner race of the bearing and pop it outward from the wheel's polyurethane hub. Flip the wheel over and repeat this exact prying motion on the remaining bearing.

Pro-Tip: If the bearings are stubborn or rusted into the wheel core, do not force them with violent jerks. Apply steady, increasing downward pressure while rotating the wheel slightly. This ensures the bearing slips out evenly without warping or tearing the inner plastic core of the wheel.

Step 3: Clean the Wheel Hubs and Axle Shafts

Before installing your new high-performance bearings, you must clear out the accumulated grit, road grime, and old black grease that pools inside the wheel cores and along the hanger axles. Dampen a clean section of your microfiber cloth with isopropyl alcohol and vigorously scrub the inner seating channel (the bearing seat) of all four wheels.

Wipe down the metal truck axles until they are completely free of rust and dark residue. This step is critical; any leftover dirt left inside the wheel core will immediately migrate past the rubber shields of your new bearings, contaminating the internal synthetic lubricants and destroying the polished steel balls.

Step 4: Press the New Bearings into the Wheel Hubs

Place your wheel on a flat surface. Position one new bearing directly over the center of the wheel hub. Ensure the colored rubber shield of the bearing faces outward (toward the street side of the wheel), while the open or metal-shielded side faces inward toward the wheel's center.

Using the palms of both hands, press down firmly on the outer race of the bearing to seat it partially into the wheel hub. To drive it home perfectly flush, slide the partially seated wheel onto the truck axle, place your hands on the outer edges of the wheel, and use your body weight to press the wheel downward against the flat shoulder of the truck hanger. You will feel a distinct mechanical "thud" when the bearing seats completely against the internal plastic shelf of the wheel.

Step 5: Insert the Spacer and Repeat the Process

Slide the wheel off the axle. Drop an 8mm x 10mm metal bearing spacer directly into the center of the wheel so it rests flat against the inner race of the bearing you just installed. Now, take your second bearing, place it over the opposite side of the wheel hub with the colored shield facing outward, and repeat the axle-pressing technique.

Look down the center bore of the wheel; the spacer should be held snugly between the two bearings, perfectly aligned with the inner races. If the spacer is loose or rattling around off-center, use the tip of your truck axle to nudge it back into perfect concentric alignment before proceeding.

Step 6: Reassemble the Wheel on the Axle and Adjust Torque

Slide one inner speed ring onto the clean truck axle. Next, slide your reassembled wheel (now housing two bearings and a spacer) onto the axle. Place the second outer speed ring onto the axle shaft, resting it against the outer bearing. Thread the 1/2-inch axle nut back onto the axle by hand, turning it clockwise to prevent cross-threading.

Tighten the axle nut with your skate tool until it stops. If you have installed spacers, you can tighten the nut securely without crushing the bearings. Back the nut off slightly (about one-sixteenth of a turn). Check the wheel: it should spin completely freely for several seconds, with a tiny fraction of a millimeter of side-to-side play (audible as a tiny click when you tug the wheel).

Skateboard Bearing Specifications, Tolerances, and Materials Comparison

To get the longest lifespan out of your new setup, match your bearing materials and design to your riding environment. The table below outlines the four primary bearing materials used in modern skateboarding, tracking their tolerances, thermal limits, and real-world durability.

Common Maintenance Mistakes and Corrective Actions

Issue 1: The wheel barely spins and stops abruptly after tightening the axle nut

• Root Cause: The axle nut is over-tightened, compressing the outer rubber shield against the inner ball-bearing retainer. Alternatively, you may have forgotten to install the inner or outer speed rings, allowing the stationary face of the hanger or axle nut to rub directly against the spinning outer race of the bearing.
• Actionable Fix: Loosen the axle nut by a quarter-turn. Ensure that there is one speed ring on the inside of the wheel (next to the truck hanger) and one speed ring on the outside (directly under the axle nut). The wheel should have a tiny, microscopic amount of lateral play to prevent binding.

Issue 2: A loud clicking or crunching sound occurs when standing on the board

• Root Cause: The bearing is not pressed fully or squarely into the wheel hub, causing it to sit at a slight angle. This misaligns the internal ball track, creating axial stress on the steel balls. Another common cause is a loose internal spacer that is slightly undersized, allowing the bearings to flex inward under your body weight.
• Actionable Fix: Take the wheel off, place it on the truck axle, and apply firm, even body weight to re-press both sides of the wheel. Ensure the bearings sit perfectly flush and flat against the outer edges of the polyurethane hub. If the clicking persists, replace the internal spacers with precision-ground 10mm spacers.

Issue 3: The wheels spin well, but emit a dry, high-pitched whistling noise

• Root Cause: The factory lubricant inside the bearings has completely dried out, been washed away by rain, or been degraded by fine dust. Running bearings dry causes metal-on-metal friction, which generates excessive heat and will eventually lead to catastrophic bearing failure (shattering).
• Actionable Fix: Carefully pry off the non-contact rubber shields using a fine pin or utility blade. Do not bend the shields. Flush the bearings with isopropyl alcohol to remove contaminated grease, dry them completely with a hair dryer, apply 2 drops of synthetic low-viscosity bearing lubricant (such as bones speed cream) directly to the balls, and press the rubber shields back into place.

Frequently Asked Questions

Do I need to run bearing spacers and speed rings?

Yes, using spacers and speed rings is highly recommended for optimal wheel performance and bearing longevity. Spacers sit between your bearings inside the wheel core, allowing you to tighten your axle nuts completely without compressing the inner races of the bearings. Speed rings prevent the outer shields of your bearings from rubbing against the truck hanger and axle nut, reducing friction and ensuring a fast, smooth, and quiet ride.

What is the difference between ABEC 5, ABEC 7, and ABEC 9 bearings?

The ABEC rating system measures the dimensional tolerances and physical precision of industrial bearings, with higher numbers indicating tighter tolerances. However, because the ABEC scale was designed for high-speed industrial machinery running at tens of thousands of RPMs without lateral impacts, it does not fully translate to the heavy lateral shocks, dirt, and vibrations of skateboarding. High-quality skate-rated bearings from reputable brands often outperform generic high-ABEC industrial bearings on the street.

How often should I clean or change my skateboard bearings?

You should clean your bearings every two to three months of regular riding, or immediately after riding through water, mud, or deep sand. You will know it is time to replace your bearings when they begin to rust, make persistent grinding noises even after cleaning and lubricating, or exhibit significant wobble and play between the inner and outer races.

Can I use WD-40 to lubricate my skateboard bearings?

No, you should never use WD-40 or household 3-in-1 oil on skateboard bearings. WD-40 is a solvent and water-displacer, not a long-term lubricant; it will wash away any existing protective grease, dry out quickly, and leave behind a sticky residue that actively attracts dirt and grit, causing the bearings to seize up rapidly. Always use a dedicated, low-viscosity synthetic skateboard bearing lubricant.

Upgrade Your Skate Hardware for Peak Performance

Equipping your board with fresh, high-quality bearings and matching hardware will instantly restore your roll speed and make your daily sessions feel incredibly smooth. Take the time to clean your wheels and trucks during every bearing swap to keep your setup rolling faster and lasting longer on any terrain.