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          Welcome: BOSS Sealing Solutions
          Language: Chinese ∷  English

          Oil Seals

          • DU bush
          DU bush

          DU bush

          • bushing-DU
          • hydraulic bearing
          • Material:steel+PTFE+bronze/
          • Color:Black or red inside
          • Product description: Bushing DU prifile, inside black or red,stainless steel ptfe bearing bushing DU for hydraulic cylinder
          • INQUIRY

          DU bush


          The DU bearing is designed in combination with the working principle of the oil cylinder and shock absorber. It is more wear-resistant in the absence of oil, and is especially suitable for occasions with large lateral forces and frequent reciprocating motion.



          1. PTFE and lipophilic fiber mixture, 0.01-0.03mm
          2. Spherical bronze powder 0.2-0.3mm
          3. Steel back 0.7-2.3mm
          4. Electroplating layer: tin plating thickness 0.005mm, or copper plating thickness 0.008mm

          DU bushing technical data:

          Maximum load pressure: 140N/mm2
          Applicable temperature range: -195~+280 degrees Celsius
          Maximum sliding speed: 3m/s
          Friction coefficient: 0.04~0.20
          Allow the highest PV value (dry): 3.8N/mm2.m/s
          Maximum allowable PV value (oil): 50N/mm2.m/s



          DU bush application

          1. The mixture of PTFE and lipophilic fiber can form a good transfer film, thereby protecting the grinding shaft during the movement.
          2. Good wear resistance and low friction coefficient.
          3. Good running performance, no shaft bite.
          4. Can be used for rotation, swing, reciprocating motion.
          5. Because it does not contain lead, it can be used in food machinery, medical machinery and other green environmental protection equipment.
          6. Also especially suitable for occasions with frequent reciprocating motion and large lateral force. Suitable for cars,Motorcycle shock absorbers and various types of hydraulic cylinders.


          Bush dimensions



          Below dimensions are standard sizes,non-standard sizes available.

          Please request if required.


          d*D*L (mm) d*D*L (mm) d*D*L (mm) d*D*L (mm) d*D*L (mm) d*D*L (mm)
          6*8*6 12*14*6 15*17*10 18*20*12 22*25*25 28*32*15
          6*8*8 12*14*8 15*17*12 18*20*15 22*25*30 28*32*20
          6*8*10 12*14*10 15*17*15 18*20*20 24*27*15 28*32*25
          8*10*6 12*14*12 15*17*20 18*20*25 24*27*20 28*32*30
          8*10*8 12*14*14 15*17*25 20*23*10 24*27*25 28*32*40
          8*10*10 12*14*15 16*18*10 20*23*12 24*27*30 30*34*12
          8*10*12 12*14*20 16*18*12 20*23*15 25*28*10 30*34*15
          8*10*15 12*14*25 16*18*15 20*23*20 25*28*12 30*34*20
          10*12*6 13*15*10 16*18*20 20*23*25 25*28*15 30*34*25
          10*12*8 13*15*20 16*18*25 20*23*30 25*28*20 30*34*30
          10*12*10 14*16*10 17*19*10 22*25*10 25*28*25 30*34*40
          10*12*12 14*16*12 17*19*12 22*25*12 25*28*30 32*36*20
          10*12*14 14*16*15 17*19*20 22*25*15 25*28*40 32*36*30
          10*12*15 14*16*20 18*20*10 22*25*20 25*28*50 32*36*40
          d*D*L (mm) d*D*L (mm)
          35*39*12 80*85*100
          35*39*15 85*90*40
          35*39*20 85*90*60
          35*39*25 85*90*80
          35*39*30 85*90*100
          35*39*40 90*95*40
          35*39*50 90*95*50
          38*42*15 90*95*60
          38*42*30 90*95*80
          38*42*40 90*95*100
          40*44*12 100*105*50
          40*44*20 100*105*60
          40*44*25 100*105*80
          40*44*30 100*105*115
          40*44*40 105*110*60
          40*44*50 105*110*80
          45*50*20 105*110*115
          45*50*25 110*115*60
          45*50*30 110*115*80
          45*50*40 110*115*115
          45*50*50 120*125*60
          50*55*20 120*125*80
          50*55*30 120*125*115
          50*55*40 125*130*60
          50*55*50 125*130*100
          50*55*60 125*130*115
          55*60*30 130*135*60
          55*60*40 130*135*80
          55*60*50 130*135*100
          55*60*60 140*135*60
          60*65*30 140*135*80
          60*65*40 140*135*100
          60*65*50 150*135*60
          60*65*60 150*135*80
          60*65*70 150*135*100
          65*70*30 160*135*60
          65*70*40 160*135*80
          65*70*50 160*135*100
          65*70*60 160*135*115
          65*70*70 180*185*80
          70*75*40 180*185*100
          70*75*50 190*195*80
          70*75*60 190*195*100
          70*75*70 200*205*60
          70*75*80 200*205*80
          75*80*30 200*205*100
          75*80*40 220*225*80
          75*80*50 220*225*100
          75*80*60 250*255*80
          75*80*70 250*255*100
          75*80*80 260*265*80
          80*85*40 260*065*100
          80*85*50 280*285*80
          80*85*60 280*285*100
          80*85*70 300*305*80
          80*85*80 300*305*100



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