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  1. Piston Seal Hallite Type: 770
    Dimensions: 101.6 x 92.2 x 7.14
    Part number: 8510017
    Delivery time: ± 1 week
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  2. Piston Seal Hallite Type: 770
    Dimensions: 107.95 x 98.55 x 7.14
    Part number: 8510231
    Delivery time: ± 1 week
    More Details
  3. Piston Seal Hallite Type: 770
    Dimensions: 114.3 x 104.9 x 7.14
    Part number: 8510435
    Delivery time: ± 1 week
    More Details
  4. Piston Seal Hallite Type: 770
    Dimensions: 120.65 x 111.25 x 7.14
    Part number: 8510675
    Delivery time: ± 1 week
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  5. Piston Seal Hallite Type: 770
    Dimensions: 127 x 117.6 x 7.14
    Part number: 8510885
    Delivery time: ± 8 weeks
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  6. Piston Seal Hallite Type: 770
    Dimensions: 133.35 x 121.36 x 9.53
    Part number: 8511052
    Delivery time: ± 8 weeks
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Hallite 770


The Hallite 770 seal is a double acting compact, low friction seal for light to medium duty hydraulic cylinders. It has been designed to fit standard inch O ring housings. It comprises a tough self lubricated elastomeric face which is pre-loaded by a rectangular cross section expander. It can be used on SG iron pistons or on a piston where there is an adequate remote bearing (see Hallite 506 and 533 bearings). The standard material is only suitable for hydraulic mineral oil applications. Other material options are available for water based (HFA and HFB) fluids and synthetic esters (HEES). In certain sizes a Hythane face material option is avaialble, particularly for intermittent single acting applications. The part numbers listed below only show the standard material option for the seal face. For a complete list of other face material options along with part numbering structure, please see the complete PDF datasheet.

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