High Rotation 40 x 80 x 18 MM 7208 B Bearing For Machine Tool Spindles
 

Product description:

Feature:
1. with unidirectional and bidirectional two types
2. use option in the ring, can permit of installation error.
3. high grade ball - high speed rotates the quiet and smooth
4. high quality steel - ultra clean steel to extend bearing life by up to 80%.
5. the height of the grease technology - n-s-klubricant technology can make the grease live longer and improve the performance of the bearing
6. in order to permit of installation error, whether one-way or two-way, can choose spherical self-aligning spherical seat cushion type or take ball seat ring type. 

Regarding on bearings
1) how to prolong service life of bearings?
accurate installation and using, alignment, timely mnitor, re lubrication etc.
2) what is the reason for bearings failure?
it is usually incorrect using method, pollution, improper use of lubricant, damage happened in installation and handing, also including installation error, according to the traces can know the reason why it is failure.
3) how to choose bearings?
analyse mechanical device and use conditions. clear the requirement of bearings. select tupe of bearings, select distribution way of bearings. select dimensions of bearing, select installation method of bearings.
4) when select bearings specifications, what do you need to consider?
the precision of the bearing (rotation precision, dimensional tolerances) internal clearance and preload bearing material and heat treatment. structure of cage and material.

FAQ
q : are you manufacture?
a : yes,we are
q : can you supply other brands?
a : we can supply all different brands as you requirment
q : how much can i get discount
a : depends on different bearing types and quantity you need
q: delivery time?
a : standard bearing usually within 3 days after we got your payment
q : do you supply oem service?
a : yes,we do
q : do you offer free samples?
a : yes,if samples value under 25usd