Industrial shaft seals

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gab.ru Axial Берг clamp АБ seals bergab@ya.ru Тел. (495)-228-06-21, факс (495) 22 Design of sealing arrangement To obtain reliable sealing, the diameter d a and width C a of the seal seating as well as the distance B a should meet the requirements given in Table 29. It is also recommended that the seal should abut a shoulder. This eases alignment. Finely turned counterfaces are adequate for axial clamp seals. The recommended surface roughnesses are R a = 2,5 µm and R t = 12 µm. Normally, after mounting, the CT axial clamp seal will have an approximately 25 mm (1 inch) gap. This should be arranged at the 6 o’clock position (fig 97). This eases installation and also facilitates drainage of contaminants. Butt-joint seals (no gap) are also available for certain applications. These provide sealing around the whole periphery. Mounting instructions The axial clamp seals with clamps are supplied as rolled-up coils. The assembly is placed in position on its seating in the housing, e.g. a roll chock, and screwed together lightly. It is then pushed forward towards the counterface and the gap (or joint) between the two ends is arranged at the 6 o'clock position (fig 97). The clamps are then tightened. The torque applied to the clamp screws should not exceed approximately 7 Nm. Assortment The standard range of axial clamp seals basically comprises seals intended for inchdiameter seatings. However, as normally the seals are mounted with an approximately 25 mm gap between the ends, they may be used for appropriate metric size seatings. In case of doubt, please contact the application engineering service. A A A-A Fig 97 gab.ru 368Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 22
gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, Industrial факс shaft seals (495) 22 Table 29. Application tolerances Ba h D a C E a Dimension Tolerance Axial clamp seal of design CT1 CT3 CT4 Seal seating diameter D a D a ± 1,6 mm D a ± 1,6 mm D a ± 1,6 mm Seal seating width C a C ± 3,2 mm C ± 3,2 mm C ± 3,2 mm Distance B a B ± 0,8 mm B ± 0,8 mm B ± 0,8 mm Distance E 11,1 ± 3,2 mm 4,8 ± 3,2 mm 11,1 ± 3,2 mm Seal lip height above ”D a ” h 12,7 ± 0,8 mm 15,1 ± 1,6 mm 12,7 ± 0,8 mm gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс 369 (495) 22
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Industrial shaft seals

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