Measure_bearing To measure the bore of a bearing you can use a vernier caliper like the one shown.
Insert the outer anvils of the caliper into the bore as shown and open the caliper until the bearing and caliper are a good fit about each other. Now read the value on the caliper.
In the absence of a caliper a good quality steel ruler will suffice.
measure bearing To measure the outside diameter of a bearing place the jaws of the caliper around the bearing and close it until its a good fit but not tight, now read the value from the caliper.
measure bearing In the same manner as you measured the outside diameter measure the width as shown.

New products

PayPal