Part

Hello,

The 81-255 is similar to your roller but we've also recommended the 81-243 to replace Del Mar rollers similar to yours in the past. Take a look at the other customer's thread here. The wheel measures 1-1/4" but the housing can be adjusted to compensate for slight size differences. Also, the style of the screw tab is different on our rollers but that shouldn't prevent either option from working for you.

Take a look and review the dimensions shown below, which will be the determining factor when choosing the best replacement option. Thanks for posting.   

Alternate image for 81-255

Alternate image for 81-243