KOYO Bearings-Nanjing Haning Bearing Manufacturing Co., Ltd.

Founded in 1921, Koyo (Koyo Seiko) is a Japanese R&D-type manufacturer of comprehensive functional products, with 6557 employees. As one of Japan's four main bearing manufacturing groups, KOYO SEIKO owns world’s top production and control equipment, with eight main factories in Tokyo, Nara, Hikita, Toyohashi, Takamatsu, Tokushima and Kameyama in Japan, (all pass the ISO9001 certificate). Koyo Seiko has several overseas production facilities and research institutions across Europe, Asia, North and South America.

In 1st Jan. 2006, Koyo Seiko and Toyoda Machine Works Ltd have been merged. After combination, the new company name is Jtekt Corporation.

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Model 产品型号	Brand 知名品牌	Type 产品类别	Inside diameter 内径 (mm)	Outside diameter 外径 (mm)	Thickness 厚度宽度 (mm)
51120Thrust ball bearing size100X135X25	KOYO	Thrust ball bearing推力球轴承	100	135	25
51220Thrust ball bearing size100X150X38	KOYO	Thrust ball bearing推力球轴承	100	150	38
51320Thrust ball bearing size100X170X55	KOYO	Thrust ball bearing推力球轴承	100	170	55
51420Thrust ball bearing size100X210X85	KOYO	Thrust ball bearing推力球轴承	100	210	85
51122Thrust ball bearing size110X145X25	KOYO	Thrust ball bearing推力球轴承	110	145	25
51222Thrust ball bearing size110X160X38	KOYO	Thrust ball bearing推力球轴承	110	160	38
51322Thrust ball bearing size110X190X63	KOYO	Thrust ball bearing推力球轴承	110	190	63
51422Thrust ball bearing size110X230X95	KOYO	Thrust ball bearing推力球轴承	110	230	95
51124Thrust ball bearing size120X155X25	KOYO	Thrust ball bearing推力球轴承	120	155	25
51224Thrust ball bearing size120X170X39	KOYO	Thrust ball bearing推力球轴承	120	170	39
51324Thrust ball bearing size120X210X70	KOYO	Thrust ball bearing推力球轴承	120	210	70
51424Thrust ball bearing size120X250X102	KOYO	Thrust ball bearing推力球轴承	120	250	102
51126Thrust ball bearing size130X170X30	KOYO	Thrust ball bearing推力球轴承	130	170	30
51226Thrust ball bearing size130X190X45	KOYO	Thrust ball bearing推力球轴承	130	190	45
51326Thrust ball bearing size130X225X75	KOYO	Thrust ball bearing推力球轴承	130	225	75
51426Thrust ball bearing size130X270X110	KOYO	Thrust ball bearing推力球轴承	130	270	110
51128Thrust ball bearing size140X180X31	KOYO	Thrust ball bearing推力球轴承	140	180	31
51228Thrust ball bearing size140X200X46	KOYO	Thrust ball bearing推力球轴承	140	200	46
51328Thrust ball bearing size140X240X80	KOYO	Thrust ball bearing推力球轴承	140	240	80
51428Thrust ball bearing size140X280X112	KOYO	Thrust ball bearing推力球轴承	140	280	112
51130Thrust ball bearing size150X190X31	KOYO	Thrust ball bearing推力球轴承	150	190	31
51230Thrust ball bearing size150X215X50	KOYO	Thrust ball bearing推力球轴承	150	215	50
51330Thrust ball bearing size150X250X80	KOYO	Thrust ball bearing推力球轴承	150	250	80
51430Thrust ball bearing size150X300X120	KOYO	Thrust ball bearing推力球轴承	150	300	120
51132Thrust ball bearing size160X200X31	KOYO	Thrust ball bearing推力球轴承	160	200	31
51232Thrust ball bearing size160X225X51	KOYO	Thrust ball bearing推力球轴承	160	225	51