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Technology in motion

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LoadsThe cast hous<strong>in</strong>gs (GG20) can withstand the same dynamic and static loads as the fitted bear<strong>in</strong>gs.Hous<strong>in</strong>gs from pressed steel cannot be loaded to the same level as the bear<strong>in</strong>g. The axial load of the adjustable bear<strong>in</strong>g isapproximately 20% of the dynamic load capacity. This load<strong>in</strong>g is, however, strongly dependent on the type of fix<strong>in</strong>g on theshaft and its material.Lubrication & Ma<strong>in</strong>tenanceUnder normal operat<strong>in</strong>g conditions the grease which is filled <strong>in</strong> from the supplier will last the lifetime of the bear<strong>in</strong>g. In manysituations however, regreas<strong>in</strong>g may be necessary, especially when <strong>in</strong>clement environmental <strong>in</strong>fluences such as moisture, dustysurround<strong>in</strong>gs or <strong>in</strong>creased speeds occur.For regreas<strong>in</strong>g a Lithium soap grease should be used. The grease should be pumped <strong>in</strong> slowly whilst runn<strong>in</strong>g the bear<strong>in</strong>g.Excessive pressure is to be avoided s<strong>in</strong>ce this could damage the seal.The greas<strong>in</strong>g <strong>in</strong>tervals are dependent on the operat<strong>in</strong>g conditions and are very difficult to determ<strong>in</strong>e exactly. It isrecommended however, that regreas<strong>in</strong>g is carried out if equipment and mach<strong>in</strong>ery are only used periodically (agriculturalmach<strong>in</strong>es).The regreas<strong>in</strong>g should be carried out at the end of the operat<strong>in</strong>g period.Tighten<strong>in</strong>g torgue of the scrub screws:Shaft diameter mm do 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 100 120Tighten<strong>in</strong>g torguet Nm 4 5 6 12 12 12 23 23 23 23 23 23 23 23 23 23 23Wrench open<strong>in</strong>g mm 3 3 3 4 4 4 5 5 5 5 5 5 5 6 6 6 6Axial load Fa kN 2 3 4 5 6 8 9 10 12 14 14 15 15 16 16 16 16High temperatures unitsFor high temperatures operat<strong>in</strong>g conditions we can offer <strong>in</strong>serts for a operat<strong>in</strong>g temperature up to 250°C. The <strong>in</strong>serts aremanufactured with clearance C4.technical changes reserved03/11HFB · Wälzlager - Gehäusetechnik GmbH · Buchen123

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