High-speed wire rod mill bearing

The main feature of high speed wire rod production line is high reliability of continuous operation of mill. Due to high unit production,it is required that the bearing used in mill must have higher reliability than normal bearing during in specified inspection.Therefore,the high speed wire rolling mill bearings must meet continuous operation requirements under high-speed and high-impact conditions. Making bearings that can withstand constant production and the prohibition of bearing damage becomes a critical standard for the manufacturers who produce bearings for high-speed wire rolling mills.

Due to the work characteristic of high-speed wire rod mill,the requirement to matched bearing is more strictly.Because high rotation speed of rolling mill,heavy load and large impact force must be hold by bearing,the bearing quality must be reliable and high.The bearings used in speed-increase box,split-speed box， pinch roll， roll box and laying head of finishing mill are imported from west countries and were expensive.

High speed wire rod mill bearings manufactured by Jiayu have steadily been used in high speed wire finishing mill and improved that they have high quality and competitive price compared with bearings produce by American and Germany.There are third，forth，fifth，sixth generation of high speed wire rod mill,and our bearings are suitable fifth and sixth generation finishing mill.

Key technology

1.Considering lubrication，centrifugal force and slip，as well as impact force caused by heavy load.

2.Higher reliability

3.Improved cage design

4.Improved groove curve

Table 1 High speed wire rod mill bearing dimensions

Applications

Bearing dimensions of high speed rod mill
Code	Bearing model	Main dimensions				Weight	Rated load(KN)		limited speed	Bearing type	Mouting place
		d	D	B	r	kg	Cr	Cor	rpm
162250B	N140-106	200	320	48	2.1	15	382	575	3600	Cylindrical roller bearing	No-Twist Mill Gearbox
162250C	7266 PD-9/6B	130	230	80	3	14.5	308	386	4500	Pair angular contact ball bearing	No-Twist Mill Gearbox
162250D	N128-107	140	220	35	2	5.3	211	291	7000	Cylindrical roller bearing	No-Twist Mill Gearbox
162250E	7224 PD-9/6B	120	215	80	2.1	12.4	286	345	5000	Pair angular contact ball bearing	Long shaft
162250F	N1024	120	180	28	2	2.8	156	214	9000	Cylindrical roller bearing	Long shaft
162250G	N126 KC10/7	130	200	33	2	3.6	237	299	8000	Cylindrical roller bearing	1#-6# beve gearbox/driveshaft
162250GA	N126KC11/8	130	200	33	2	3.6	237	299	8000	Cylindrical roller bearing	7#-10# beve gearbox/driveshaft
162250H	N312 C4/2	60	130	31	2.1	1.9	165	168	11000	Cylindrical roller bearing	Drive shaft
162250HA	N312 C5/3	60	130	31	2.1	1.9	165	168	15000	Cylindrical roller bearing	Drive shaft
162250J	7310 PD7/5B	50	110	54	2	2.5	122	102	15000	Pair angular contact ball bearing	1#-10# beve gearbox/driveshaft
162250K	309 RD9/6B	45	100	50	1.5	1.9	104	85	16000	Pair angular contact ball bearing	1#-6# beve gearbox/Idler pulley
162250KA	309S 34/26	45	100	25	1.5	1	53	32	12000	Deep groove ball bearing	7#-10# beve gearbox/Idler pulley
162250L	7208 PD5/4F	40	80	36	1.1	0.8	53	44	15000	Pair angular contact ball bearing	Roll housing
162250LA	7309 PD7/5F	40	100	50	1.5	2.1	97	80	15000	Pair angular contact ball bearing	3#-10# Roll housing
162250MA	QJ311Y	50	120	19.213	2	2.8	83	111	12000	Four point contact ball bearing	1#-2# roll housing
162250MB	7310 PD8S	50	110	54	2	2.5	122	102	15000	Pair angular contact ball bearing	Rollhousing/Roll housing shaft
162250S	N134-104	170	265	42	2.5	8.3	316	337	5000	Cylindrical roller bearing	Speed increaser
162250U	134KS	170	260	42	2.1	8.4	158	149	4000	Deep groove ball bearing	Speed increaser /Splitter gearbox
162250V	N228	140	250	42	2.5	8.7	450	569	3000	Cylindrical roller bearing	Speed increaser /Splitter gearbox
162250W	6228	140	250	42	3	9.1	160	154	4000	Deep groove ball bearing	Speed increaser /Splitter gearbox
162250X	9128 KS2	140	210	33	2	4.1	111	108	7000	Deep groove ball bearing	Speed increaser /Splitter gearbox

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