Flange block KFL08 envelope with a 608 pocket — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/flange-block-kfl08/  (CC BY 4.0)
Basis: KFL08 two-bolt flange envelope: 55 × 25 flange, M5 holes 37 apart, Ø22 pocket at the 608 OD
Catalog version: 2026-10-20

Sizes: see table below
- A two-bolt flange 55 long × 25 wide with round ends, 9 thick, with a Ø30 boss rising to 12 overall.
- A Ø22 pocket (608 OD) runs through the boss and flange on the centre.
- Two Ø5.5 holes (M5 clearance) 37 mm apart.

feature  value_mm
flange  55 × 25 × 9
boss  Ø30 × 12
bearing pocket  Ø22 through
mounting holes  2 × Ø5.5 at 37

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- McMaster-Carr: Mounted bearings (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms [verify license at link] — https://www.mcmaster.com/products/mounted-ball-bearings/
- McMaster-Carr: Sleeve bearings (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms [verify license at link] — https://www.mcmaster.com/products/sleeve-bearings/
- OpenBuilds: Solid V wheel kit — web, STEP — OpenBuilds site [verify license at link] — https://openbuildspartstore.com/solid-v-wheel-kit/
- Wikipedia: Plain bearing — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Plain_bearing
- 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/flange-block-kfl08/index.json
API: https://xemstudio.com/api/geometry?object=flange-block-kfl08