TX-STE Type

The TX code identifies a line of bearings that are specially manufactured to allow the bonding of a filled PTFE coated fiber
(lead free, in accordance to the European Parliament “ELV” directive 2000/53/EC) to four types of backing metal-layers
like carbon steel, bronze, stainless steel and Inconel 625.

In addition to the standard metal-layers, Slib Italy has recently developed the special product TX-STE made
of a Stellite 6b metal-layer, which is a metal alloy made of Cobalt and Chromium having:

  • excellent mechanical resistance
  • excellent wear resistance even at medium and high temperatures, due to itd high specific hardness

BEARING SECTION

GRAPHIC LOAD/SPEED

PS: the values shown in the graph were determined with a test of constant load, and running for 1000 cycles at three different temperatures: -190 °C, +18 °C and +260 °C

Dimensions

For further information on the dimensions we can produce, contact our offices.

TABLE LEGEND:

SIZE:
Inside and outside bearing diameters
INSIDE Ø:
Tolerance range of the inside diameter after the assembly in the seat (mm)
HOUSING/SEAT Ø:
Housing/seat tolerance (mm)
BEARING THICKNESS:
Thickness tolerance of the finished bearing (mm)
CUT:
Maximum opening of the bearing flaps (carbon steel, 316 and 625) (mm)
SHAFT Ø:
Correct size of the shaft to be used with the bearing

Table

TX-STE
Bushings
Stellite 6b
+ Sintering
+ Fiber + filled PTFE
SUPPORTING SHELL Co Rest, Cr 28 ÷ 32%
W 3.5 ÷ 5.5%, C 0.9 – 1.4%
Mo 1.50%, Other Ni, Fe, Si, Mn
The given values are nominal values from literature.
SLIDING LAYERS Special fiber with filled PTFE, colour black-gray,
thickness 400 micron, heavy load capacity and self-lubricating under dry operation.
SINTERING Special adhesive between the fiber and the backing steel, thickness 60 micron.
SHAFT For an optimal performance the shaft surface finishing shall be between Ra 0.40 and Ra 1.60 micron, depending on different applications. Hardness 80 – 160 HB5.
MECHANICAL PROPERTIES
WORKING TEMPERATURE min - 180 °C - max + 260 °C
COEFFICIENT OF FRICTION 0.03-0.10
MAX. SPEED 0.50 m/s
MAX. STATIC LOAD 400 N/mm2
MAX. DYNAMIC LOAD
(max. speed 0.05 m/s)
190 N/mm2
MAX. DYNAMIC LOAD
(max. speed 0.50 m/s)
100 N/mm2
CHEMICAL RESISTANCE
HYDROCARBONS Excellent
HYDROCHLORIC ACID
(concentrate to 10%)
Excellent
SULFURIC ACID
(concentrate to 10%)
Excellent
METHANE Excellent
OXYGEN Excellent
SODIUM HYDROXIDE Good
LIQUID NITROGEN Excellent
SOLVENTS Good

Note: The informaton in this data-sheet is to be considered reliable, but conditons and methods of use, which are beyond our control, may modify the results. The informaton and data contained in this data-sheet are the result of a long and detailed research, however F.lli Paris S.r.l. cannot be considered responsible for any incorrect or incomplete data. Owing to the constant development of the products, we reserve the right to make changes to them without prior notice.