Bearing pocket gauge for 623, 625 and 608 (Ø10 / Ø16 / Ø22, +0 / +0.2 / +0.4) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/bearing-pocket-gauge/  (CC BY 4.0)
Basis: Pockets at the bearing OD (623 Ø10, 625 Ø16, 608 Ø22) and +0.2 / +0.4, 6 deep
Catalog version: 2026-10-20

Sizes: see table below
- Every file on this site is drawn at exact size with no printing allowance; this gauge steps through sizes around the nominal so you can measure the allowance your process needs for one fit class, then apply it only to the features each object lists under Mating features.
- The gauge is a 100 × 36 × 8 mm block with nine pockets 6 mm deep: Ø10.0, 10.2, 10.4 (623), Ø16.0, 16.2, 16.4 (625), Ø22.0, 22.2, 22.4 (608).
- Press each bearing in with a thumb: the pocket that holds it, minus the bearing OD, is your bearing-pocket allowance.
- The three Ø22 pockets run out through the long edge of the block (they are 0.2–3.2 mm wider than the edge allows), which does not affect reading the bore.

bearing  od_mm  pockets_mm  depth_mm
623  10  10.0 / 10.2 / 10.4  6
625  16  16.0 / 16.2 / 16.4  6
608  22  22.0 / 22.2 / 22.4  6

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Engineering tolerance — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Engineering_tolerance
- Prusa: Knowledge base: XY size compensation — web — Prusa KB [verify license at link] — https://help.prusa3d.com/article/xy-size-compensation_125045
- Long Earth Society: Engine and rig builds — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/bearing-pocket-gauge/index.json
API: https://xemstudio.com/api/geometry?object=bearing-pocket-gauge