Brass castor made in India to a high standard. The VR653 is virtually identical to 653 also listed in this group, the major difference is the price.
VR653
PB
a=25 b=34mm
$8.65
VR654
PB
a=32 b=42mm
$10.50
VR655
PB
a=38 b=54mm
$15.30
$ Australian
Other suggestions:
653
IS25W