Skateboard wheel sizes: diameter 50–60 mm by use and deck width, the 608 bearing (8 × 22 × 7 mm) and two bearings per wheel — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/skateboard-wheels-diameter-and-bearings/  (sheet CC BY 4.0)
Basis: Three retailer guides (SkatePro, size-charts.com, Warehouse Skateboards) for diameter by use; the bearing envelope is the 608 page on this site (ISO 15); numbers only
Catalog version: 2026-10-20

Sizes: see table below
- Skateboard wheels run from about 50 to 60 mm for street, park and cruising and 60 mm and up for longboard and downhill; the retailers' ranges overlap but do not agree, so the table keeps each source's numbers (for example, cruising is 56–60 mm in SkatePro and 54–60 mm in size-charts.com; street is 50–53 in SkatePro and 50–52 in size-charts.com). The size-charts.com deck table maps deck width to a wheel range (7.5 in deck 50–52 mm up to a 9.0 in deck 54–60 mm).
- Every skateboard wheel holds two bearings, one in each side of the hub, and the bearing is the 608: 8 mm bore, 22 mm outer diameter, 7 mm wide (ISO 15; shielded ZZ and sealed 2RS share the envelope). Press-fit seat sizes and the 7 mm bearing width are on the 608 page. A spacer between the bearings is common but its length is not a standard dimension in any source read.
- Not published in the sources read, so not listed: wheel width, contact patch, hub (seat) depth, core design and wheel weight. Product titles use values such as '36.5 mm CP', but the guides do not define 'CP', so they are not used. Durometer (78A to 101A) is a hardness, not a dimension; not tabulated.
- No files: the 608 bearing and pocket models are already on the 608 page; a wheel has no standard profile.

use  diameter (mm)  source
street, park  50 – 53  SkatePro
street, park, bowl, mini ramp  53 – 56  SkatePro
cruising, vert  56 – 60  SkatePro
street  50 – 52  size-charts.com
cruising  54 – 60  size-charts.com
longboard, downhill, dirt board  60 and up  size-charts.com
beginner / bigger riders: street, skate park, bowl, vert  54 – 59  Warehouse Skateboards
longboard, old-school, downhill, dirt  60+  Warehouse Skateboards
wheel for a 7.5 in deck  50 – 52  size-charts.com deck table
wheel for an 8.0 in deck  50 – 54  size-charts.com deck table
wheel for an 8.5 in deck  53 – 56  size-charts.com deck table
wheel for a 9.0 in deck  54 – 60  size-charts.com deck table
bearing (all skateboard wheels, two per wheel)  608: 8 bore × 22 OD × 7 wide  Xem page 608-bearing (ISO 15)

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- SkatePro: Guide to purchasing skateboard wheels: diameter by use, durometer — web — Publisher's page; dimensions are facts — https://www.skatepro.uk/a536.htm
- size-charts.com: Skateboard wheel size chart: diameter by use and deck width — web — Publisher's page; dimensions are facts — https://size-charts.com/topics/skateboard-size-chart/skateboard-wheel-size
- Warehouse Skateboards: Longboard wheels buying guide: diameter by use — web — Publisher's page; dimensions are facts — https://warehouseskateboards.com/help/Longboard-Skateboard-Wheels-Buying-Guide

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=skateboard-wheels-diameter-and-bearings