OPENTECHNICAL PUBLICATION
OT-2026-000003291

Caster device

Published: 2026-09-15T20:03:39.163904Z
Permanent URL: https://opentechnical.org/p/OT-2026-000003291
Categories: Tools & Tooling > Clamping Tools

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ABSTRACT

A caster device for supporting a push cart includes a cap member having a flat
top fixed to the push cart and a circular side wall. The circular side wall of
the cap member has an inwardly curled lower edge. An inverted and truncated
conical ring member has a curved side wall and a flange. A bowl-shaped rotary
member is disposed below the ring member such that a horizontal flange thereof
abuts the flange of the ring member. The side wall of the rotary member and
the curved side wall of the ring member cooperatively define a first annular
ball-receiving space. The horizontal flange and the side wall of the rotary
member, and the inwardly curled lower edge of the cap member cooperatively
define a second annular ball-receiving space. A plurality of steel balls are
rotatably confined within the first annular ball-receiving space and the
second annular ball-receiving space to permit rotation of the rotary member
with respect to the cap member.

1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.

[0006] Sheet 6.

[0007] Sheet 7.

[0008] Sheet 8.

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OpenTechnical publication OT-2026-000003291
Published 2026-09-15T20:03:39.163904Z
https://opentechnical.org/p/OT-2026-000003291