YUYAO HUANQIU BEARING CO., LTD.

6000 series

6200 series

6300 series

6800 series

6900 series

R series

Plastic wheels

  Add:Zhexiang,ditang town,
         Yuyao,Zhejiang

  Tel:86-574-62291918 62292918

  Fax:86-574-62291731

  P.C.:315492

  Email:
  sales@chinahuanqiubearing.com

　　
　　 The bearing vibration and noise is divided into three classes as indicated as Z1.Z2 and Z3.It is inspected by SO910-1 instrument .For any special requirement,it might be inspected by BVT-1AND INDICATED AS V1,V2 and V3.The data are shown on following table.Please mark the requirement of vibretion and noise on your purchase order.

mm	SO910-1(dB)			BVT-1(um/s)
	Z1≤	Z2≤	Z3≤	V1≤			V2≤			V3≤
	Z1≤	Z2≤	Z3≤	低频	中频	高频	低频	中频	高频	低频	中频	高频
4	35	33	31	90	60	50	58	36	30	35	21	18
5	36	34	32	90	60	50	58	36	30	35	21	18
6	36	34	32	90	60	50	58	36	30	35	21	18
7	37	34	32	110	80	65	72	48	40	44	28	24
8	38	35	33	110	80	65	72	48	40	44	28	24
9	40	36	34	110	80	65	72	48	40	44	28	24
10	41	38	35	140	100	85	90	60	50	55	35	30
12	43	39	35	140	100	85	90	60	50	55	35	30
15	44	40	35	180	130	100	110	78	60	65	46	35
17	45	41	36	180	130	100	110	78	60	65	46	35
20	46	42	37	220	160	125	130	100	75	80	60	45