POWER-LOCK TSUBAKI TYPE AE Series This Series has the same inner and outer diameters as the multipurpose AS Series , with the addition of the centering feature. Requires no guide for alignment and additional machining of guide portions for centering, allowing for straight bore mounting. Simply constructed with only an inner and an outer ring and a few locking bolts. The AE Series Power-Locks are simply constructed of the following three parts: inner and outer rings, and a few locking bolts. A completely secure connection can be achieved by simply tightening these bolts.