The embodiment of the utility model discloses a non-standard four-point contact insert bearing with a seat. The non-standard four-point contact insert bearing comprises a bearing seat and a four-pointcontact ball bearing, the bearing seat is provided with a bearing mounting hole, and the inner surface of the bearing mounting hole is an inner spherical surface; four-point contact ball bearing, theball bearing is a non-standard four-point contact insert ball bearing. The bearing at least comprises an outer ring, an inner ring and steel balls arranged between the outer ring and the inner ring,a first contact angle a1 and a second contact angle a2 are formed between the connecting line of the steel balls and the contact points of the inner ring annular channel and the outer ring annular channel and the radial plane of the bearing, the outer surface of the outer ring is an outer spherical surface, and the outer spherical surface of the outer ring is matched with the inner spherical surface of a bearing installation hole in the bearing pedestal. The embodiment of the utility model discloses the embodiment of the utility model, the self-aligning roller bearing can bear radial load, axial load or radial and axial combined load at the same time, has higher load capacity, can bear higher overturning moment, and can perform self-aligning correction through the outer spherical surface of the outer ring of the self-aligning roller bearing and the inner spherical surface of the mounting hole of the bearing pedestal even if the self-aligning roller bearing bears the overturning moment.