Double Row Deep Groove Ball Bearings
Double row deep groove ball bearings are suitable for bearing arrangement whose load capacity is insufficient with only one single row deep groove ball bearing. For thoses double row deep groove ball bearings whose outside and inside diameter are same with deep groove ball bearings, with larger width, the load capacity is also significantly higher than the 62 and 63 series of deep groove ball bearing.Standard deep groove ball bearings are a common set of radial internal clearance.
Error of centralization.
When double row deep groove ball bearing's inner and outer rings have centring error, this will lead to additional load. Thus increasing the load of steel ball and the retainer, it shorten the working life of the bearing. Therefore,allowable angle error is only 2 minute of arc. Any larger angle errors will lead to the increase of noise.
Double row deep groove ball bearing assembled with two glass fiber reinforced nylon 6,6 retainers.
Deep groove ball bearing, assembled with nylon maintains, can work under temperature up to 120 DEG C.
General bearings lubricant don't affect the retainer's characteristics.But some synthetic oil or lubricating grease which based on synthetic oil or lubricants contains a large number of extreme pressure additives are except when in high temperature operation.