Monday, January 11, 2016

Split spherical roller bearings FAG reduce expenses on car

At the factory in Spain, on the conveyor in the paint shop have been installed split spherical roller bearings in housings brand FAG, replace the corresponding whole bearing. This has significantly reduced the time to replace the bearings and idle painting line, thereby reducing maintenance costs.

The plant employs about 11,000 people, production capacity is 400,000 cars per year, with sales reaching 4.8 billion euros.

Received first Body Shop in the immersed in the bath for washing primary treatment and then rinsed in a bath after cataphoresis and after priming before painting. Moving bodies produced a conveyor belt driven, which establishes the spherical roller bearings. Originally established by conventional solid bearings are not practiced design life due to exposure to aggressive media. Every time a failed bearing is required to replace, had to stop production for the period from 4 to 5 hours. It took to find a technical solution for a quick replacement, to avoid downtime.

Quick and easy replacement of the bearing

The most effective solution is to split the split roller bearings in the housings. Thanks to a fully collapsible to the shaft design, these bearings are installed and removed quickly, which is particularly important for the installation of hard to reach places, such as shafts with multiple points of support. The releasable Hull bearing all the parts - the inner ring, outer ring, roller and cage assembly and housing - are divided into two halves, joined with screws. The cylindrical bearing bore provides a landing directly on the shaft with adequate axial loads and possible distortions. But most importantly, split bearings faster and easier, with fewer transactions, assembled and disassembled. Therefore significantly reduced downtime and damage caused by them.

Reducing time to replace bearings 10 times

So for baths paint shop conveyor with a belt drive have been ordered split FAG spherical roller bearings in stationary cabinets on legs, with a lip seal. In addition, a stop ring for the axial fixation FRM140 through which except for the shaft height adjustment, no modifications required installation space.

Bearing replacement now requires much less time - 30 minutes instead of 4 or 5 hours - allowing repeatedly to reduce downtime and increase equipment availability. Depending on the output of the currently loss of output for 4-5 hours may go up to 500 bodies. After replacing bearings split, loss of production does not exceed 180 bodies.

In addition to reducing the time required for replacement, split bearings modular design easier to store, and for housing the bearings of the same size are available with various orifice diameters.

Application of split bearings

Spherical roller bearings are used in belt drives, paper machines, concrete mixers, conveyors, rolling mills, converters, crushers, rotary kilns, fans, drive shafts and intermediate. Conventional unsplit bearings in many cases, are mounted on the shaft in such a complex way that the replacement is required dismantle the surrounding components - stars, pulleys, couplings, gears, etc. Split bearings allow it to avoid and provide tangible savings.

Sunday, January 4, 2015

Bearing 6202-2RSH

Dimensions and characteristics of the bearing 6202-2RSH
Drawing Parameter Designation Value Units
Bearing 6202-2RSH Bore Dia d 15 mm
Outer Dia D 35 mm
Bearing width В 11 mm
The radius of the chamfer distance r 0,6 mm
Mass m - kg
Dynamic Basic Load Rating C 8060 N
Static Basic Load Rating C0 3750 N
Fatigue load limit Pu - N
Reference speed Nref r/min
Limiting speed Nlim 13000 r/min
No. of Balls Z - pcs
Balls Size Dw - mm
The coefficients for the calculation of kr 0,025 -
f0 13 -