RGU-Packings (Piston packings)

Standard Material: NBR(RN923)

Profiles (Left section)

RGU-1
en_RGU

Service range

Standard Material
Material codes Pressure MPa {kgf/㎠} Max. speed
(m/s)
Temperature range
(℃)
NBR(RN923) RGU-Packings〈Clearance of extrusion H9/f8〉 14 {140} 1 ー25~100
w/Back-up rings 21 {210} 0.5
w/PWL-Bearings ー25~80

Characteristics

Unique double acting one-ring profile with seal lip provides similar sealing performance that allows compacter piston part.
Multi-functional "Bearing plus Back-up ring" PWL-Bearings are available for the best combinations.

Remarks

  • ●Consider adopting split grooves if one-piece groove is technically adverse.
  • ●φD H9/f8 changes according to the variation of the bearing structure.
    For applications installed in combination with PWL-Bearing or other wear rings, refer to the dimension table of the applicable wear rings.
  • ※JIS standard sequence of surface roughness symbols refer to HERE.

Dimension table

Packings & Groove dimensions (Unit:mm) Part No.
D d H GA GB D1 D2 L Standard material(RN923) Standard back-up ring(PT111)
40 30 6.5 7 11 39.5 38.5 2.5 RGU-40A TBC-40×30×2
45 35 6.5 7 11 44.5 43.5 2.5 RGU-45A TBC-45×35×2
50 40 6.5 7 11 49.5 48.5 2.5 RGU-50A TBC-50×40×2
55 45 6.5 7 11 54.4 53 2.5 RGU-55A TBC-55×45×2
60 50 6.5 7 11 59.4 58 2.5 RGU-60A TBC-60×50×2
63 53 6.5 7 11 62.4 61 2.5 RGU-63A TBC-63×53×2
65 55 6.5 7 12 64.4 63 2.5 RGU-65A TBC-65×55×2.5
70 60 6.5 7 12 69.4 68 2.5 RGU-70A TBC-70×60×2.5
75 65 6.5 7 12 74.4 73 2.5 RGU-75A TBC-75×65×2.5
80 67 8 8.5 13.5 79.4 78 3 RGU-80A TBC-80×67×2.5
85 72 8 8.5 13.5 84.4 83 3 RGU-85A TBC-85×72×2.5
90 77 8 8.5 13.5 89.4 88 3 RGU-90A TBC-90×77×2.5
100 85 9 10 16 99.4 98 4 RGU-100A TBC-100×85×3
  • ★Orders and inquiries are acceptable by part numbers. Part numbers marked ※ have been changed each part numbers. Please check HERE for the previous part number.
  • ★Part numbers in blue letters are the products in stock.
  • ★Packings with the part numbers in light Italic require the confirmation of their availability prior to ordering. These items are subject to the abolishment without notice. Reclamation of an abolished product requires producing the new tooling at your expense.
  • ★Packings are adequately packaged for the optimum storage. Refer to Cautions for the handling and
  • ★Performance and material tests on packing and seals are also available. Please contact us for more information.