NTN bearings

The beginning of the Japanese bearing industry was started by competitor Nippon Seiko (now known as NSK) producing such bearings in 1914. Four years later in 1918, Nishizono Ironworks, a factory in Uchibori, Mie Prefecture began producing ball bearings.

In the following year, NTN Toyo changed its name to NTN Corporation while creating a new constant-velocity joint factory and research and development center for NTN Driveshaft in Columbus Indiana. .

As a result of giobalization，with bearings being further governed by international guidelines, NTN consolidated its foreign operations while trying to expand further into cutting edge markets. In order to expand North American operations, the company formed NTN USA Corporation, which was slated to become a holding company for their existing US divisions. They also established an office to oversee the fabrication activities of their existing operations. One of NTN's objectives was to begin production of constant-velocity joints in North America. One of their first steps in doing so was the 1996 purchase of Federal-Mogul's ball bearings sector.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NTN RNU2622 cylindrical roller bearings	120 mm	180 mm	25 mm	1.5 mm
NTN SL02-4926 cylindrical roller bearings	35 mm	60 mm	10 mm	0.6 mm
NTN NNU3038C1NAP4 cylindrical roller bearings	250 mm	355 mm	40 mm	2 mm
NTN CR0864 tapered roller bearings	50 mm	80 mm	13 mm	0.6 mm
NTN 7206T2DB/GMP5 angular contact ball bearings	90 mm	130 mm	16 mm	1 mm
NTN 32044XU tapered roller bearings	45 mm	70 mm	10 mm	0.6 mm
NTN 4T-539/532X tapered roller bearings	100 mm	140 mm	16 mm	1 mm
NTN NJ2234 cylindrical roller bearings	300 mm	395 mm	35 mm	2.5 mm
NTN T-M244249/M244210D+A tapered roller bearings	220 mm	280 mm	25 mm	2 mm
NTN CRO-4825 tapered roller bearings	200 mm	295 mm	35 mm	2 mm
NTN DE4012 angular contact ball bearings	70 mm	100 mm	13 mm	0.6 mm
NTN 4R7414 cylindrical roller bearings	140 mm	200 mm	25 mm	1.5 mm