jiaxing landbearing co.,ltd

--PRODUCTS HOME

DDB-10

----Structure

1.PTFE/Pb mixture 0.01~0.03mm, provides an excellent initial transfer film, which effectively coats the mating surface of the bearing assembly, forming an oxide type solid lubricant film.

2.Sintered bronze power 0.20-0.35mm, provides Max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE-lead mixture.

3.Low-carbon steel, gives exceptionally high load carrying capacity, excellent heat dissipation.

4.Copper/Tin plating 0.002mm, provides good corrosion resistance.

----Tech. Data

----Features

1. Suitable for dry running

2. Low coefficient of friction

3. Hydrodynamic operation possible

4. Low wear

5. Good sliding characteristics

6. Forming a transfer film can protect the mating metal surface.

7. Suitable for rotary and oscillating movement

8. Very high chemical resistance

9. Low absorption of water and swelling

10. As the lead so can not be used in food industries.

----Typical Application

Can meet the demanding criteria for long life and trouble-free performance with or without lubrication.

Automotive: tractors, combines, crop sprayers, earth-movers,
graders and other construction,auto machines,Specific uses in power steering cylinders, steering gear thrust washers, disc brakes, calipers and pistons, shock absorbers, governor linkage, windshield wiper motor, tilt gear assemblies...

Business machines: photocopy machines, typewriters, mail sorters, postage meter systems, computer terminal printers and peripheral equipment, automatic printing devices, mail processing machinery..

Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions...

Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...

And materials handling,marine engine,packaging,textile equipment,tools...

----Tolerance of standard metric cylindrical and flange bushes

Indoor Diameter of Bearing Bush	Wall Thickness	Allowable Tolerance of Wall Thickness
5≤d<20	1.0	+0.005 -0.020
20≤d<28	1.5	+0.005 -0.025
28≤d<45	2.0	+0.005 -0.030
45≤d<80	2.5	+0.005 -0.040
80≤d<120	2.5	-0.010 -0.060
120≤d	2.5	-0.035 -0.085

External Diameter of Bearing	Allowable Tolerance of External Diameter
D≤10	+0.055 +0.025
10<D≤18	+0.065 +0.030
18<D≤30	+0.075 +0.035
30<D≤50	+0.085 +0.045
50<D≤80	+0.100 +0.055
80<D≤120	+0.120 +0.070
120<D≤180	+0.170 +0.100
180<D≤250	+0.210 +0.130
250<D≤305	+0.260 +0.170