How To Change Skateboard Bearings: The Complete Step-by-Step Guide

Swapping out worn skateboard bearings restores lost roll speed, eliminates sluggish wheel performance, and ensures a safer, smoother ride. By using your truck axle as a natural leverage tool, you can extract old 608-size bearings and press in fresh replacements in under 15 minutes. Proper installation of speed rings and internal spacers is critical to prevent wheel friction and maintain structural alignment under high-impact riding.

Pre-Operation Planning & Essential Gear Checklist

Skateboard bearings are small, high-precision mechanical components that live in a harsh environment of dirt, impact, and moisture. Over time, the internal steel balls and races degrade, leading to increased friction, loud grinding noises, and a noticeable loss of momentum. Changing your bearings is a fundamental maintenance skill that keeps your setup performing at its peak while preventing sudden wheel lockups.

Before beginning the replacement process, organize your workspace. A flat, clean surface like a workbench or table is ideal to prevent small parts from rolling away. Having the correct tools on hand ensures you will not strip your axle threads or damage the delicate shields of your new bearings.

• Essential Tools & Materials:
  
  
  • A standard skateboard T-tool or a socket wrench with a 1/2-inch socket (for the axle nuts).
  • Eight fresh 608-specification skateboard bearings (two per wheel).
  • A clean microfiber cloth or rag to wipe down dirty components.
  • Optional: Replacement speed rings (washers) and bearing spacers (8mm x 10mm).
  • Optional: Low-viscosity synthetic skateboard bearing lubricant.
• Prerequisite Knowledge & Safety Standards:
  
  
  • Axle Threads: Standard skateboard axles use a 5/16-inch thread size. Be careful not to cross-thread the axle nuts during reassembly.
  • Bearing Dimensions: Standard skateboard wheels require 608-size bearings, which feature an 8mm inner diameter, a 22mm outer diameter, and a 7mm width.
• Performance & Resource Benchmarks:
  
  
  • Estimated Duration: 10 to 15 minutes for a full set of four wheels.
  • Required Budget: $15 to $30 for standard high-performance steel bearings; $50 to $100+ for premium ceramic upgrades.
  • Difficulty Level: Beginner-friendly. No advanced mechanical experience required.

The Step-by-Step Bearing Replacement Process

Follow this precise sequence to extract your old bearings safely and install your new ones without damaging your wheels or trucks.

Step 1: Secure the Skateboard and Remove the Axle Nut

Place your skateboard on its side on a flat surface so that the wheels you are working on face upward. Fit the 1/2-inch socket of your skate tool over the axle nut. Rotate the tool counterclockwise to loosen and remove the nut. Once removed, carefully slide off the outer speed ring (the small washer sitting directly beneath the nut) and set both parts aside in a secure location.

Pro-Tip: Always keep a magnetic tray or a small cup nearby during this process. The axle nuts and speed rings are exceptionally easy to lose on garage floors or carpet, and riding without speed rings causes direct friction against the outer bearing race.

Step 2: Remove the Wheel and Slide Off the Washers

Pull the wheel straight up and off the axle. You will now see the inner speed ring sitting on the base of the truck axle near the hanger. Slide this inner washer off as well. Your truck axle should now be completely bare on this side, which is necessary for using the axle as a bearing extraction tool.

Step 3: Extract the Old Bearings Using the Axle Leverage Trick

Instead of purchasing an expensive bearing puller, you can use your truck axle as a highly effective pry bar. Slide the wheel back onto the bare axle, but only far enough so that the tip of the axle penetrates the inner ring of the outermost bearing (about 7 to 8 millimeters deep).

With a firm grip on the wheel, pry it downward at an angle. The edge of the axle will catch the inner race of the bearing, leveraging it out of the wheel hub. Flip the wheel over and repeat this exact prying motion to pop out the inner bearing. If your setup includes internal bearing spacers, they will fall out naturally once the first bearing is removed.

Warning: Do not twist the wheel violently or apply sudden, jerking force during this step. Doing so can strip the delicate steel threads at the end of your truck axles, making it impossible to thread your axle nuts back on later.

Step 4: Clean the Wheel Hubs and Axle Shafts

Take your clean microfiber cloth and thoroughly wipe down the inside of the wheel hubs where the new bearings will sit. Road grime, dirt, and moisture naturally collect inside the wheel core. Leaving this debris inside will contaminate your new bearings almost instantly, bypassing the protective shields and grinding down the internal polished steel balls. Wipe down the metal axle shafts of your trucks to ensure a smooth, clean fit.

Step 5: Press the New Bearings into the Wheels

To ensure your new bearings go in completely straight without damaging the side shields, use your truck axle as a press. Place one new bearing onto the bare truck axle with the colored rubber shield facing downward (toward the truck hanger). This ensures that once the wheel is pressed on, the protective shield will face outward to block dirt.

Take your wheel and press the hub firmly down onto the bearing. Use your body weight to push straight down until you feel the bearing seat flush into the wheel core. If you are using bearing spacers, slide one spacer onto the axle now. Place the second bearing on the axle (shield facing down) and press the opposite side of the wheel down onto it.

Pro-Tip: You will often hear or feel a distinct "click" or settling sensation when the bearing is fully seated in the wheel hub. Check visually to ensure the bearing is perfectly flat and flush with the edge of the wheel. A crooked bearing causes severe wheel wobble and uneven wear.

Step 6: Reassemble the Wheel Assembly and Tune the Axle Nut

With both bearings and the spacer securely housed inside the wheel, slide one speed ring onto the bare axle. Next, slide your reassembled wheel onto the axle. Place the second speed ring onto the axle on the outside of the wheel.

Thread the axle nut back onto the axle by hand, turning it clockwise to prevent cross-threading. Use your 1/2-inch socket tool to tighten the nut. Tighten the nut completely until it is snug, then back it off roughly one-quarter of a turn.

Warning: Never ride with overtightened axle nuts. Squeezing the bearings too tightly compresses the inner races, crushing the internal balls and shields, which stops the wheel from spinning. The wheel must have a tiny, barely perceptible amount of lateral play (less than 1 millimeter) to spin freely and efficiently.

Bearing Material Properties & Performance Metrics

Different bearing materials offer varying levels of durability, speed maintenance, and resistance to environmental elements. Use this comparative matrix to determine which bearing composition aligns with your riding style and budget.

Common Installation Failures & Field Fixes

When changing bearings, minor alignment issues or incorrect hardware setups can lead to poor performance. Below are the most common troubleshooting scenarios faced during installation and how to resolve them.

• The wheel barely spins or grinds to a halt immediately after tightening the nut.
  
  
  • Root Cause: The axle nut is overtightened, compressing the bearing shields against the inner races, or you have forgotten to install the speed rings, causing the nut to rub directly against the spinning outer race.
  • Actionable Fix: Loosen the axle nut by one-quarter turn using your T-tool. Ensure that you have one speed ring on the inside of the wheel (against the truck hanger) and one on the outside (against the axle nut).
• The bearing is physically stuck in the wheel hub and will not pop out.
  
  
  • Root Cause: Dirt, road grime, or heat from high-speed riding has caused the bearing outer race to seize slightly inside the plastic core of the wheel.
  • Actionable Fix: Apply a single drop of penetrating oil or specialized lubricant around the seam where the bearing meets the wheel hub. Let it sit for three minutes to loosen the bond, then use the axle leverage trick with steady, firm pressure to pop it loose.
• The wheel wobbles side-to-side and makes a clicking noise while rolling.
  
  
  • Root Cause: The bearings are seated unevenly (crooked) inside the wheel hub, or you have omitted the internal bearing spacers, allowing the bearings to flex inward under lateral loads.
  • Actionable Fix: Remove the wheel and place it back on the axle press. Apply even, downward pressure with your hands to seat both bearings fully flat against the inner hub shoulders. For optimal structural integrity, install an 8mm x 10mm spacer between the two bearings.
• New bearings feel slow, heavy, or make a gritty sound right out of the box.
  
  
  • Root Cause: Many manufacturers pack new bearings with a heavy, highly viscous protective grease to prevent rust during shipping and storage, which requires a "break-in" period.
  • Actionable Fix: Ride the skateboard on clean, flat pavement for 1 to 2 hours. The friction and heat generated during riding will thin the factory grease, distributing it evenly and drastically increasing your roll speed.

Frequently Asked Questions

How often should I change my skateboard bearings?

On average, active skateboarders should replace their bearings every 6 to 12 months. However, this timeline depends heavily on your environment; if you regularly skate through water, sand, or dirt, your bearings will degrade much faster and may require immediate replacement once they become noisy or sluggish.

Do ABEC ratings matter for skateboard bearings?

No, ABEC ratings (1, 3, 5, 7, 9) do not accurately measure skateboard performance. The ABEC scale was designed to measure tolerances in high-speed, stationary industrial machinery, whereas skateboard bearings must deal with heavy side-loads, sudden vertical impacts, and street dirt—factors that the ABEC rating system completely ignores.

Can I clean and lubricate my bearings instead of replacing them?

Yes, if your bearings are not rusted or physically dented, you can extend their lifespan by removing the rubber shields, soaking the bearings in isopropyl alcohol to dissolve dirt, drying them completely, and applying two drops of synthetic bearing lubricant. If they still grind or squeak after cleaning, they are structurally worn and must be replaced.

Why are speed rings and bearing spacers necessary?

Speed rings prevent the stationary axle nut and truck hanger from rubbing against the rotating outer race of your bearings, which reduces friction. Spacers sit inside the wheel between the bearings to prevent them from compressing inward when you tighten your axle nuts or perform hard, lateral slides.

Which way does the colored shield on a bearing face?

The colored rubber shield should always face outward toward the sides of the wheel. The shield is engineered to deflect dust, water, and debris away from the internal lubricated balls, while the back of the bearing is often open or has a non-contact metal shield designed to sit safely inside the sealed wheel hub.

Upgrade Your Setup for Peak Performance

Now that your wheels are equipped with fresh, fast-rolling bearings, pair them with the ultimate setup to maximize your speed and control. Explore our collection of premium, high-rebound urethane wheels and precision trucks to elevate your riding experience to the next level.