Anyone know how much these are rated for?

[Anguz]

Acquired 8 of these today
What's the concensus on the max loading each?

 

[Cato]

I don't know for those specifically, but the 20 - 30 mm rollers are usually within the 120 - 170 kg range.

 

[Erie Fred]

I had to design a press table with some of them in there, and the high load ones look to be machined on the O.D. not pressed.
Consult McMaster Carr catalog for the different kinds.

 

[Anguz]

These are about a 35mm diameter hole..
Definitely pressed construction

 

[Robotstar5]

You may be able to get some specs on the Alwayse website

 

[Agroshield]

These are about a 35mm diameter hole.

Someone in Mexico has some:

Rueda O Rodamiento # Mcb80110 - $ 200

*** RODAMIENTO ***# MCB80110 Dimensiones: 42 mm Diametro / 27 mm Altura= = =Ofrecemos servicios de Mantenimiento y Reparación de Sistemas de Energía Ininterrumpible (UPS), EATON, POWERWERE, POWER-ALL, GE, APC, NEWAVE, IMV, MGE, TOSHIBA, MITSUBISHI, LIEBERT y SIEMENS

articulo.mercadolibre.com.mx

With his dimensions and your dimensions, I think it is an equivalent to this one:

Ball Transfer Unit 22mm Steel - K22BTU - Keystone Castors

22.2mm Ball Transfer Unit. "Drop-In" model with Chrome steel load ball case hardened for durability. Suits 36mm Seating Hole. Load Capacity = 160kg. Supplied with Spring Clip. Check 2D Image for Dimensional Data.

www.keystonecastors.co.uk

160kg