TF - C TYPE
The TF code identifies a family of self-lubricating bearings and washers made by a composite multilayer material. The main parts composing this product are a modified filled PTFE layer (lead free, in accordance to the European Parliament “ELV” directive 2000/53/EC) for the sliding self-lubricating surface, and a special primer used to allow the sintering of the PTFE layer to various types of baking metal layers like: carbon steel, bronze, stainless steel and Inconel 625. Thanks to its structure, the TF type provides an excellent match between the mechanical strength of the steel and the low coefficient of friction of the modified PTFE sliding layer.
This is a product that can be used in applications with medium loads and in a clean environment with low levels of abrasive elements such as metal powders. It can also be used with special mineral oils and specific greases such as silicone compounds or lithium soap.
TF-C – COQUE D’APPUI:
Carbon steel S235 JR
C |
0.17% |
S |
0.045% |
Mn |
1.40% |
N |
0.009% |
P |
0.045% |
TF-C – SECTION DES PALIERS LISSES

TF-C – GRAPHIQUE CHARGE/VITESSE

Dimensions
LÉGENDE DE LA TABLE:
DIMENSIONS:
Diamètre intérieur et extérieur du roulement
Ø INTÉRIEUR:
Plage de tolérance du Ø intérieur après montage dans le siège (mm)
Ø SIÈGE:
Tolérance de siège (mm)
ÉPAISSEUR DE BUSH:
Tolérance d’épaisseur du roulement fini (mm)
COUPE:
Ouverture maximale des volets de roulement (mm)
Ø ARBRE (tolérance f7):
Dimension correcte de l’arbre à utiliser avec le roulement

Tableau de comparaison
TF-C |
TF-316 |
TF-316S |
TF-625 |
TF-625S |
TF-F51 |
|
---|---|---|---|---|---|---|
Carbon Steel S235 JR
|
Aisi 316L |
Aisi 316L |
Carbon steel S235 JR |
Carbon steel S235 JR |
Duplex A182 F51 |
|
FASTRACK SERVICE | X | X | X | X | ||
COQUE D’APPUI |
C 0.17%, |
C 0.03% |
C 0.03% |
C 0.10% |
C 0.10% |
C 0.20% |
The given values are nominal values from literature. | ||||||
SLIDING LAYERS |
Filled PTFE film, colour black-gray, thickness 200–220 μm, |
|||||
SINTERING |
Oven made sintering process between PTFE and the steel backing at a temperature of +250° C – BRONZE FREE. |
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SHAFT | For an optimal performance the shaftsurface finishing shall be between Ra 0.40 and 1.60 μm, depending on the different applications. Hardness 80 – 160 HB5. |
Mechanical Properties
WORKING TEMPERATURE | min – 190 °C max + 260 °C |
min – 190 °C max + 260 °C |
min – 190 °C max + 260 °C |
min – 190 °C max + 260 °C |
min – 190 °C max + 260 °C |
min – 190 °C max + 260 °C |
COEFFICIENT OF FRICTION | 0.03-0.20 | 0.03-0.20 | 0.03-0.20 | 0.03-0.20 | 0.03-0.20 | 0.03-0.20 |
MAX. SPEED | 1.00 m/s | 1.00 m/s | 0.50 m/s | 1.00 m/s | 0.50 m/s | 1.00 m/s |
MAX. STATIC LOAD | 250 N/mm2 | 250 N/mm2 | 250 N/mm2 | 250 N/mm2 | 250 N/mm2 | 250 N/mm2 |
MAX. DYNAMIC LOAD (max. speed) |
140 N/mm2 (0.10 m/s) |
140 N/mm2 (0.10 m/s) |
180 N/mm2 (0.05 m/s) |
140 N/mm2 (0.10 m/s) |
180 N/mm2 (0.05 m/s) |
140 N/mm2 (0.10 m/s) |
MAX. DYNAMIC LOAD (max. speed) |
60 N/mm2 (1.00 m/s) |
60 N/mm2 (1.00 m/s) |
80 N/mm2 (0.50 m/s) |
60 N/mm2 (1.00 m/s) |
80 N/mm2 (0.50 m/s) |
60 N/mm2 (1.00 m/s) |
Chemical Resistance
HYDROCARBONS | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
HYDROCHLORIC ACID (concentrate to 10%) |
Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
SULFURIC ACID (concentrate to 10%) |
Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
METHANE | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
OXYGEN | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
SODIUM HYDROXIDE |
Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
LIQUID NITROGEN |
Excellent | Excellent | Excellent | Excellent | Excellent | Excellent |
SOLVENTS | Good | Good | Good | Good | Good | Good |
Remarque: Les informations contenues dans ce tableau doivent être considérées comme fiables, mais les conditions et les méthodes d’utilisation indépendantes de notre volonté, peuvent modifier les résultats. Les informations et données contenues dans ce tableau sont le résultat d’une longue et détaillée recherche, mais F.lli Paris S.r.l. ne peut être considéré responsable pour toute donnée incorrecte ou incomplète. Face au développement constant des produits, nous nous réservons le droit de les modifier sans préavis.