HOT Sale High Quality Low Price Deep Groove Ball Bearing
Product Description
| 1.Bearing clearance |
| The radial clearance of Daewoo Seiko Bearings might be devided into five groups according to ISO.The radial clearance without pre-load is shown on the table.Normally.the products are assembled as basic group clearance.Please note the special requirements in you order sheet if any customer needs bearing clearance rather than the value of basic group. |
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| 2.Dustproof,sealing and lubrication |
The structure of bearings consist of open and close types,and the close type might be equipped with dust proof on single side or both sides (Z,ZZ);with non-contact sealing ring on single side or both sides(RS,2RS),and with contact sealing ring on single side or both sides(RS,2RS).
Before ex works,the product is filled properly with lubricant oil and grease.You may use it immediately after packing.It is suitable for light to middle load,low to middle speed and working temperature-20'C.F or and special case,please note the usage and brand of grease on your order. |
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| 3.Bearing vibration noise specification |
| According to related standard,the vibration noise(DB)of Daewoo Seiko Bearings are devided into four groups:Z1,Z2,Z3,Z4.Also they can be devided into four groups in according to vibration speed(μm/s):V1,V2,V3,V4,Normally,common bearings are delivered with Z1 group vibration value.if no special requirement from customers,the bearings for export will be delivered with vibration Z2 group specifications.However, please note your special requirement on vibration in your order. |
| 4.Bearing collar and ball material |
| The most normal material for ball bearing is chrome steel.which features desired hardness,strong rolling fatigue resistance,wearing gresitance and stable dimension,Its chemical composition is: |
| chemical composition of Bearing steel Gcr15 |
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