This rotor fits Dexter 10K-HD and 12K Trailer axle with DEXTER Disc brakes.  (will not fit 10K GD Axles).
Rotor is approximately 11" OD
About 3.75" thick overall.
Mounts with 8 bolts (to the hub) on a 7-1/2" bolt circle.
Hub pilot bore of 5.25".
Weight is about 32 pounds.
10,000 heavy duty & 12,000 Lbs. capacity axles
Dexter Part Number: 070-006-01
PJ Trailers Crossover Part Number: 111055
Redneck Crossover Part Number: 70-006
Fits 13G and 13D Torflex axles
Use with 089-002-02 brake caliper