Combined Cylindrical Roller Bearing

A combined cylindrical roller bearing comprising:

• first and second angular cylindrical roller bearings coaxially disposed in parallel, and
• an interval adjustment plate disposed between the first and second angular cylindrical roller bearings;
• wherein, in the first angular cylindrical roller bearing, a plurality of first cylindrical rollers are rollably inserted into a single first roller raceway formed between a first outer race and a first inner race;
• in the second angular cylindrical roller bearing, a plurality of second cylindrical rollers are rollably inserted into a single second roller raceway formed between a second outer race and a second inner race;
• and
• where end surfaces of the first and second outer races that face each other from a direction of a bearing center axis line are respectively designated as first and second outer race end surfaces, and end surfaces of the first and second inner races that face each other from the direction of the bearing center axis line are respectively designated as first and second inner race end surfaces,
• one pair from among the first and second outer race end surfaces and the first and second inner race end surfaces abut each other from the direction of the bearing center axis line, and the interval adjustment plate is sandwiched between the other pair.