What longboard skateboard bearings actually do

Bearings sit inside each wheel and let it spin freely on the axle. Every wheel needs two, so a four-wheel board uses eight. That is the entire physical job: reduce friction between the wheel and the axle so the wheel rolls.

For commuting and cruising riders, bearings affect two things you will notice directly: how smoothly the wheel rolls and how often you need to push. A dirty or dry bearing creates drag. A clean, lubricated one coasts longer between pushes. That difference adds up fast on a two-mile campus commute.

The part most beginners miss is this: the bearing itself is less important than its condition. A mid-range ABEC-5 bearing that gets cleaned every few months will outperform a neglected expensive one every time. If you want to go deeper on how bearings are built and what to look for when buying, our longboard bearings guide covers that in more detail. Here, the focus is on specs, maintenance, and the decisions that actually change your ride.

ABEC ratings: what they mean and what they do not

ABEC stands for Annular Bearing Engineers’ Committee. The rating system measures manufacturing precision — specifically, how close the tolerances are on the inner and outer races of the bearing. ABEC-1 is looser. ABEC-9 is tighter. That is it.

What ABEC does not measure: speed, durability, smoothness under load, or ride quality. It is a factory-floor spec, not a riding spec.

When someone asks me “should I get ABEC-7 or ABEC-9,” I usually ask if they have cleaned their current bearings lately. The answer is almost always no. The practical upgrade path for most riders is not a higher ABEC number — it is a bearing cleaning kit and ten minutes of maintenance. If you are still deciding between board types entirely, our longboard vs skateboard comparison covers the broader setup differences that matter before you get into component specs.

You can browse different bearings for longboard setups on our category page, but honestly, start with cleaning what you have before buying anything new.

Ceramic bearings: worth it for longboard riders?

Ceramic bearings use silicon nitride or zirconia balls instead of steel. The ceramic balls are harder, lighter, and resist corrosion better than steel. They also generate less heat at high RPMs.

Here is where that matters and where it does not:

For most riders — especially daily commuters on dry pavement riding one to three miles — the difference between a clean set of steel bearings and ceramic bearings is not something you will feel under your feet. The corrosion resistance matters if you ride in rain regularly or live near salt air. Outside of that, you are paying for a material advantage your riding conditions do not require.

I have talked to riders who bought ceramic bearings thinking it would solve a sluggish roll problem. The problem was dirty steel bearings. A ten-minute cleaning would have done more than a $60 upgrade. Before spending on ceramics, run through the maintenance steps below and see where you stand.

How to maintain longboard bearings: step by step

There is no universal cleaning schedule. If you ride daily on rough pavement, you might clean every two to three months. If you ride weekends on smooth bike paths, you might go six months without noticing a problem. The signal is always the same: listen and feel.

Clean your bearings when: roll distance drops noticeably, you hear a grinding or gritty sound, or you have recently ridden through water, mud, or sand. For more on overall board upkeep, see our full longboard maintenance guide.

1. Remove the wheels. Use a skate tool or 1/2-inch wrench to take off the axle nuts. Pull each wheel off.
2. Pop out the bearings. Wedge the bearing out by levering the wheel against the axle, or use a dedicated bearing puller. The axle method works fine for most riders — slide the wheel halfway onto the axle at an angle and pry outward.
3. Remove the bearing shields. Most bearings have a rubber shield on one side. Use a pin or thin flathead to gently pry it off. Be careful not to bend it — you need to put it back.
4. Clean the bearings. Place them in a small container with bearing-specific solvent or 90%+ isopropyl alcohol. Shake or swirl for one to two minutes. The liquid will come out dark. Drain and repeat if needed until it runs mostly clear.
5. Let them dry completely. This matters. Any remaining solvent will dilute the lubricant. Set them on a clean paper towel for at least ten minutes, or blow them out with compressed air.
6. Apply lubricant. One to two drops of bearing-specific lubricant per bearing. Not WD-40 — that is a solvent, not a lubricant, and it will strip the oil and leave your bearings drier than before. Not motor oil, not cooking oil. Dedicated bearing lubricant or sewing machine oil works.
7. Replace shields, reinsert bearings, remount wheels. Press each bearing back into the wheel until it seats flush. Replace the axle nut, tighten until the wheel has no lateral play but still spins freely.

The most common mistake I see: over-lubricating. Two drops is enough. Excess oil attracts dust and creates the exact grime you just cleaned off. For more detailed cleaning walkthroughs with photos, we have a separate how to clean longboard bearings guide that walks through the process step by step.

When to clean bearings versus when to replace them

Cleaning fixes most bearing problems. But not all of them. Here is a quick decision framework:

Replacement bearings are inexpensive enough that cleaning badly damaged ones is usually a waste of time. A fresh, clean, lubricated ABEC-5 steel bearing will roll better than a neglected ceramic one. If your bearings are past saving, you can find replacement bearings that match your wheel size and setup on our category page.

The sunk-cost trap here is real: people spend forty minutes cleaning a $6 set of bearings with visible rust, hoping to save the purchase. Just replace them. The new ones will take ten minutes to install and roll better immediately.