catalogue search
P. 01
P. 02
P. 03
P. 04
P. 05
P. 06
P. 07
P. 08
P. 09
P. 10
P. 11
P. 12
P. 13
P. 14
P. 15
P. 16
P. 17
P. 18
P. 19
P. 20
P. 21
P. 22
P. 23
P. 24
P. 25
P. 26
P. 27
P. 28
P. 29
P. 30
P. 31
P. 32
P. 33
P. 34
P. 35
P. 36
P. 37
P. 38
P. 39
P. 40
P. 41
P. 42
P. 43
P. 44
P. 45
P. 46
P. 47
P. 48
P. 49
P. 50
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
You may also be interested in
Diaphragm, Machine foot, Motor mounting, Bumper, Mechanical seal
Text version of the page
Merkel U-Ring NI 400 Material
NBR profile ringFabricPOM back-up ring MaterialCodeardness Nitrile rubber NBR80 NBR 87880 Shore A Back-up ring
MaterialCode PolyacetalPOM 992020 Fig. 1Merkel U-Ring NI 400 Operating conditions Product description
Material0 NR /POMTemperature range in °C Merkel U-ring with asymmetrical profile of the sealing lips, fabric reinforcement on the dynamic sealing side and back-up ring as a gap sealing component. Product advantages
Hydraulic oils HL, HLP–30 … +100HFA fluids+5 … +60 HFB fluids+5 … +60HFC fluids–30 … +60HFD fluids– Water+5 … +90HETG (rapeseed oil)–30 … +80HEES (synthetic ester)– HEPG (glycol)–30 … +60Mineral greases–30 … +100Pressure p in MPa40 Running speed v in m/s0,5 Single-acting rod seal for medium loads, predominantly for spare parts require-ments. Application Heavy duty earth moving equipment, industrial vehicles, presses, control and regulation equipment. Surface uality
Surface rougnessR a R max Sliding surface0,05 … 0,3 µm≤2,5µmGroove base≤1,6µm≤6,3µmGroove flanks≤3,0µm≤15,0µm Percentage contact area M r >50% to max. 90% at cutting depth c = Rz/2 and reference line C ref = 0%. 38 Hydraulics | Rod Seals | Merkel U-Ring NI 400 © Freudenberg Simrit GmbH & Co. KG | Seals for Fluid Power Catalog 2007
Catalogue 2007 Hydraulics - 26637 Merkel U-Ring NI 400
Sealing componentNBR profile ringFabricPOM back-up ring MaterialCodeardness Nitrile rubber NBR80 NBR 87880 Shore A Back-up ring
MaterialCode PolyacetalPOM 992020 Fig. 1Merkel U-Ring NI 400 Operating conditions Product description
Material0 NR /POMTemperature range in °C Merkel U-ring with asymmetrical profile of the sealing lips, fabric reinforcement on the dynamic sealing side and back-up ring as a gap sealing component. Product advantages
Hydraulic oils HL, HLP–30 … +100HFA fluids+5 … +60 HFB fluids+5 … +60HFC fluids–30 … +60HFD fluids– Water+5 … +90HETG (rapeseed oil)–30 … +80HEES (synthetic ester)– HEPG (glycol)–30 … +60Mineral greases–30 … +100Pressure p in MPa40 Running speed v in m/s0,5 Single-acting rod seal for medium loads, predominantly for spare parts require-ments. Application Heavy duty earth moving equipment, industrial vehicles, presses, control and regulation equipment. Surface uality
Surface rougnessR a R max Sliding surface0,05 … 0,3 µm≤2,5µmGroove base≤1,6µm≤6,3µmGroove flanks≤3,0µm≤15,0µm Percentage contact area M r >50% to max. 90% at cutting depth c = Rz/2 and reference line C ref = 0%. 38 Hydraulics | Rod Seals | Merkel U-Ring NI 400 © Freudenberg Simrit GmbH & Co. KG | Seals for Fluid Power Catalog 2007