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Bearing Spacers

Bearing spacers are small metal cylinders that fit into a skateboard wheel between the bearings. Their purpose is to reduce the weight distributed to each bearing, which can make your turns smoother and more stable and also extend the life of your bearings. Bearing spacers are totally optional; longboarders and casual skaters likely won't put enough pressure on their boards to ever need them, though they are definitely a good investment if you want to slide, do a lot of tricks, and generally skate hard. Bearing spacers are typically inexpensive, and can be made from steel, aluminum, or other types of metal.

Unlike bearings, bearing spacers are not one-size-fits-all. Bearing spacer size is measured by two things: axle diameter (not to be confused with axle width!) and overall spacer width. For example, 8mm x 10mm is a very common bearing spacer size. The first number (8mm) refers to the diameter of the axle, and the second number (10mm) refers to the overall width of the bearing. Most truck axles are 8mm in diameter, so determining axle size is pretty straightforward--you may even see the first number dropped from some bearing spacer measurements. Determining the overall spacer width you need is not an exact science, but generally large longboard wheels will take 10mm, and skateboard wheels will take 8mm. When you purchase new bearings, the set may come standard with bearing spacers, but they can also be purchased separately.

Skateboard Bearings and Speed Washers at Warehouse Skateboards
To install bearing spacers, begin by sliding in your first bearing. Then flip the wheel over and press the bearing spacer in. It should be held firmly in the wheel core; if the bearing spacer moves or rattles around at all, that's a sure sign that your spacers are too small. Once the spacer has been pressed into place in the center of the wheel, slide the other skateboard bearing into place.

CR Seals (SKF) 450208 Bearing Spacers
CR Seals (SKF) 450208 Bearing Spacers
1.41
1.5 kN
Timken X1S-56425 Bearing Spacers
Timken X1S-56425 Bearing Spacers
2.00 mm
570000 N
Timken K147767-2 Bearing Spacers
Timken K147767-2 Bearing Spacers
141 kN
46.831 mm
Timken HM926740XA Bearing Spacers
Timken HM926740XA Bearing Spacers
12 mm
0.54 kN
Timken X1S93787 Bearing Spacers
Timken X1S93787 Bearing Spacers
HMVC 26E
129.692 mm
Timken X1S3662 Bearing Spacers
Timken X1S3662 Bearing Spacers
0.8
91.5 kN
Timken X1S67790-2 Bearing Spacers
Timken X1S67790-2 Bearing Spacers
232 kN
169 mm
Timken LM961510EA-2 Bearing Spacers
Timken LM961510EA-2 Bearing Spacers
1.00 mm
200.000 mm
Timken HM840410ES-2 Bearing Spacers
Timken HM840410ES-2 Bearing Spacers
73.00 mm
190.0000 mm
CR Seals (SKF) 455031 Bearing Spacers
CR Seals (SKF) 455031 Bearing Spacers
39.954 mm
299.339 mm
Timken M719149XS-2 Bearing Spacers
Timken M719149XS-2 Bearing Spacers
0.5 m/s
4 mm
Timken M719113ES-2 Bearing Spacers
Timken M719113ES-2 Bearing Spacers
105 °
30 mm
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