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TC4

TC4
TC4_image_3d_v1
TC4_image_3d_v2

Description

The TC4 profile is a shaft seal composed of a single metal cage with a rubber coating and a double sealing lip with an integrated spring, suitable for linear movements.

Advantages

Very good static sealing
Very good thermal expansion compensation
Greater roughness is allowed in the housing
Reduced risk of corrosion
Sealing for low and high viscosity fluids
Modern primary sealing lip with low radial forces
Protection against undesirable air contaminants
Sealing lips designed for linear movements

Technical data

Applications

All types of linear applications
Shock absorbers
Power-assisted steering

Materials

Rubber

FKM 75 - 80 Shore A
HNBR 75 - 80 Shore A
NBR 75 - 80 Shore A

Metal cage

Steel - AISI 1010
Steel - DC01 C490
Steel - DC01 C590

Spring

Steel - AISI 1070 - 1090
Stainless steel - AISI 316

Dimensions
Materials
Conditions
for use

Dimensions

Materials

Metal cage - Spring

The table below shows the materials that we can offer for metal cages and springs.

Application Material Standard Characteristics
Metal cage Non-alloy standard steel AISI 1010
(DIN 1624)
Cold rolled steel
Metal cage Nickel chrome steel AISI 304
(DIN 1.4301 - V2A)
Standard stainless steel
Metal cage and spring Chrome-nickel-molybdenum steel AISI 316
(DIN 1.4401 - V4A)
Stainless steel highly resistant to corrosion
Spring Steel for springs AISI 1070 - 1090
DIN 17223
Cold drawn carbon steel wire
Spring Nickel chrome steel AISI 302
(DIN 1.4300)
Stainless steel for springs with a high carbon content

Rubbers

ACM (Polyacrylate)

Polymers containing ethyl acrylate (or butyl acrylate) have a small amount of monomer, which is necessary for cross-linking; ACM is a material with better heat resistance than NBR. It is often used for automatic gearboxes.

Chemical resistance Mineral oils (motor oils, gear box oils, ATF oils)
Atmospheric and ozone agents
Compatibility issue Glycol-based brake fluids (Dot 3 & 4)
Aromatic and chlorinated hydrocarbons
Water and steam
Acids, alkalis and amines
Temperature range -25°C to + 150°C (short-term peak at +160°C)
-35°C / +150°C with particular ACMs
AEM (ethylene acrylate rubber)

As a methyl acrylate and ethylene copolymer, AEM is considered to be more resistant to heat than ACM. Its characteristics make it an intermediary between ACM and FKM.

Chemical resistance Cooling fluids
Aggressive mineral oils
Atmospheric agents
Water
Compatibility issue Aromatic solvents
Strong acids
Brake fluids
Gearbox oils
ATF oils
Temperature range - 40°C to + 150°C
CR (Polychloroprene)

This CR-based rubber is used in the refrigeration industry and for ventilation systems. This chloroprene was the first synthetic rubber to be developed and marketed.

Chemical resistance Paraffinic mineral oils
Silicone oils and greases
Water and water-based solvents for use at low temperatures
Refrigerant fluids
Ammoniac
Carbon dioxide
Atmospheric and ozone agents
Limited chemical resistance Naphthenic mineral oils
Aliphatic hydrocarbons (propane, butane, petroleum)
Glycol-based brake fluids
Compatibility issue Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Temperature range -40°C / +100°C (short-term peak at +120°C)
EPDM (Ethylene Propylene Diene Monomer rubber)

As an Ethylene Propylene Diene Monomer copolymer, EPDM is commonly used for hot water taps, cooling systems, brake systems, dishwashers and washing machines.

Chemical resistance Hot water and steam up to +150°C
Glycol-based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5)
Organic and inorganic acids
Cleaning agents, sodium and potassium alkalis
Hydraulic fluids (HFD-R)
Silicone oils and greases
Polar solvents (alcohols, ketones and esters)
Atmospheric and ozone agents
Compatibility issue Mineral oils and greases
Hydrocarbons
Low impermeability to gas
Temperature range -45°C / +150°C (short-term peak at +175°C)
FFKM (perfluorinated rubber)

FFKM has the best characteristics for resistance to high temperatures, with an excellent chemical inertia. This FKM-based rubber is very often used for high-temperature hydraulic and pneumatic systems, industrial valves, injection/fuel systems, motor seals and high-vacuum systems.

Chemical resistance Aliphatic and aromatic hydrocarbons
Polar solvents (ketones, esters and ethers)
Organic and inorganic acids
Water and steam
High-vacuum system
Compatibility issue Coolants (R11, R12, R13, R113, R114, etc.)
PFPE
Temperature range -15°C/+320°C
FKM (fluorinated rubber)

Depending on their structure and fluorine content, the chemical resistance and resistance to the cold in fluororubbers can vary. This FKM-based rubber is very often used for high-temperature hydraulics and pneumatics, for industrial valves, injection/fuel systems, motor seals and high-vacuum systems.

Chemical resistance Mineral oils and greases, ASTM n°1, IRM 902 and IRM 903 oils.
Fire-resistant liquids (HFD)
Silicone oils and greases
Mineral and vegetable oils and greases
Aliphatic hydrocarbons (propane, butane, petroleum)
Aromatic hydrocarbons (benzene, toluene)
Chlorinated hydrocarbons (trichlorethylene)
Fuel (including high alcohol content)
Atmospheric and ozone agents
Compatibility issue Glycol-based brake fluids
Ammonia gas
Organic acids with a low molecular weight (formic and acetic acids)
Temperature range -20°C / +200°C (short-term peak at +230°C)
-40°C / +200°C with particular FKMs
FVMQ (fluorosilicone rubber)

The FVMQ has mechanical and physical properties that are very similar to those of the VMQ. However, the FVMQ offers better resistance to fuels and mineral oils. However, resistance to hot air is not as good as that of the VMQ.

Chemical resistance Aromatic mineral oils (IRM 903 oil)
Fuels
Aromatic hydrocarbons with low molecular weights
(benzene, toluene)
Temperature range -70°C/+175°C
HNBR (Hydrogenated Nitrile Butadiene Rubber)

This HNBR-based rubber is obtained through selective hydrogenation of the NBR's butadiene groups. It is commonly used for power-assisted steering and for air conditioning.

Chemical resistance Aliphatic hydrocarbons
Mineral and vegetable oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, saline solutions and bases for operation at an average temperature
Water and steam up to +150°C
Atmospheric and ozone agents
Compatibility issue Chlorinated hydrocarbons
Polar solvents (ketones, esters and ethers)
Strong acids
Temperature range -30°C / +150°C (short-term peak at +160°C)
-40°C / +150°C with particular HNBRs
NBR (Nitrile Butadiene Rubber)

Nitrile rubber (NBR) is the general term for acrylonitrile-butadiene copolymer. The ACN content can vary between 18% and 50%. While the acrylonitrile content is important, the resistance to oil and fuel is more so. Conversely, the elasticity and compression set are not as good. The NBR has good mechanical properties and good wear resistance. However, its resistance to atmospheric agents and the ozone is relatively low.

Chemical resistance Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, low-temperature alkaline and saline solutions
Water (up to +100°C max)
Compatibility issue Fuels with high aromatic content
Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Strong acids
Glycol-based brake fluids
Atmospheric and ozone agents
Temperature range -30°C / +100°C (short-term peak at +120°C)
-40°C / +100°C with particular NBRs
VMQ (silicone rubber: methyl vinyl polysiloxane)

This FVMQ-based rubber is very often used in fuel systems.

Chemical resistance Animal and vegetable oils and greases
Water for operation at an average temperature
Diluted saline solutions
Atmospheric and ozone agents
Compatibility issue Superheated steam up to +120°C
Chlorinated hydrocarbons with a low molecular weight (trichlorethylene)
Aromatic hydrocarbons (benzene, toluene)
Temperature range -60°C / +200°C (short-term peak at +230°C)

The table below gives an overview of the physical, chemical and mechanical characteristics for each of the materials.

Characteristics/Materials ACM AEM CR EPDM FFKM FKM FVMQ HNBR NBR VMQ
Abrasion resistant 2 3 2 2 4 2 4 2 2 4
Resistance to acids 4 3 2 2 1 1 3 1 3 3
Chemical resistance 4 2 2 1 1 1 1 2 2 2
Resistance to cold 4 2 2 2 3 4 2 2 2 2
Dynamic properties 3 3 3 2 3 2 4 1 2 4
Electrical properties 3 3 3 2 1 4 1 3 3 1
Flame resistant 4 4 2 4 1 1 2 4 4 3
Heat resistant 1 1 2 2 1 1 1 1 2 1
Sealing water 1 1 2 2 2 2 4 2 2 4
Oil resistant 1 3 2 4 1 1 2 1 1 2
Ozone resistant 1 1 2 1 1 1 1 2 4 1
Tearing resistant 2 3 3 1 4 3 4 2 2 4
Traction resistant 3 2 2 1 2 1 3 1 2 4
Water/vapour resistant 4 4 3 1 2 3 3 1 2 3
Resistance to atmospheric agents 1 1 1 1 1 1 1 2 3 1

1. Excellent properties 2. Good properties 3. Average properties 4. Poor properties

Chemical compatibility

A "Chemical compatibility guide" catalogue can be downloaded from the Documentation section. You can also use our online "Chemical compatibility" tool free of charge.

These two tools give you the option of measuring the behaviour of our materials that come into contact with the majority of existing fluids. The data displayed is the result of rigorous testing of the ambient temperature and in consultation with previous publications. Test results are not fully representative due to the specific features of your application. The tests performed actually do not consider additives and impurities that may exist under the actual conditions of use, nor the potential elevation of temperatures. Other parameters can also alter the behaviour of our materials, such as the hardness, persistence, abrasion, etc. We therefore recommend performing your own tests to verify the compatibility of our materials according to your specific application. Our technical team can provide you with any additional information.

Conditions for use

Speed - Pressure

We recommend using seals designed for linear movements at maximum speed of 1.5 m/s and pressures that do not exceed 0.65 MPa. These approximate values cannot be interpreted at the same time.

The table below sets out the connection between the permissible speeds and pressures. For more stringent applications, we recommend contacting our experts.

Speed VS Pressure for shaft seals for linear motion

Temperature

The table below indicates the temperature limits, depending on the materials and fluids used.

Media Maximum temperature, depending on the materials
ACM AEM EPDM FKM HNBR NBR
Mineral oils Oils for motors +130°C +130°C - +170°C +130°C +100°C
Oils for gearboxes +120°C +130°C - +150°C +110°C +80°C
Oils for hypoid gears +120°C +130°C - +150°C +110°C +80°C
ATF oils +120°C +130°C - +170°C +130°C +100°C
Hydraulic oils +120°C +130°C   +150°C +130°C +90°C
Greases - +130°C - - +100°C +90°C
Fire-resistant
fluids
HFA group - Emulsion with more than 80% water - - - - +70°C +70°C
HFB group - Opposite solution (water in oil) - - - - +70°C +70°C
HFC group - Polymer aqueous solution - - +60°C - +70°C +70°C
HFD group - Water-free synthetic fluids - - - +150°C - -
Other fluids EL + L heating oil - - - - +100°C +90°C
Air +150°C +150°C +150°C +200°C +130°C +90°C
Water - - +150°C +100°C +100°C +90°C
Water for washing - - +130°C +100°C +100°C +100°C
Temperature range Min. -25°C -40°C -45°C -20°C -30°C -30°C
Max. +150°C +150°C +150°C +200°C +150°C +100°C

The lip of the seal for linear movement is subjected to a higher temperature due to the movement of the rod, and the significant pressure and friction on the mechanical parts. Good lubrication is therefore necessary to allow for a better release of heat and thus limits the temperature rise in the parts subjected to friction.

Fluids

Mineral oils

In general, this type of oil has few additives and is therefore perfectly suitable for all of the rubbers used for the rotary shaft seals. The following oils are suitable for revolving applications:

  • motor oils
  • gearbox oils
  • hypoid oils
  • ATF oils for automatic gearboxes
  • transmission oils
synthetic oils

This type of oil is used to improve different characteristics such as the resistance to ageing, resistance to high temperatures, viscosity, etc. and has a good compatibility with the majority of rubbers used for the seals for the rotary shaft. Tests may need to be performed beforehand to measure the degree of compatibility of this type of oil with the materials used. Among the synthetic oils are:

  • brake fluids
  • fluids for automatic gearboxes
  • fluids for suspensions
  • fluids for steering systems
  • fluids for hydraulic transmissions
Hypoid oils

This type of oil contains special components such as EP additives. These enable lubrication and thus limit any seizing at the bearings, for example. When affected by heat, these additives have the tendency to lead to deposits on the sealing lip. That is why we recommend using seals for the rotating shaft with a sealing lip comprising return pumping leads in order to limit the increase in temperature and above all, to reduce these potential carbon deposits.

Aggressive fluids

It is critical to choose the correct material to better resist different aggressive fluids (acids, solvents, chemical products, etc.). For applications in a linear environment, we recommend using materials such as FKM rather than NBR. For operations that are dry or use very little lubrication, and where the rubbers do not resist certain aggressive fluids, we advise you to use our PTFE seals for the rotary shaft.

105 dimensions found
TC4 5x13x5
Standard request
5,00 13,00 5,00
TC4 6x16x6,5
Standard request
6,00 16,00 6,50
TC4 7x14x4
Standard request
7,00 14,00 4,00
TC4 7x16x7
Standard request
7,00 16,00 7,00
TC4 8x14x4
Standard request
8,00 14,00 4,00
TC4 8x16x7,5
Standard request
8,00 16,00 7,50
TC4 8x16x9
Standard request
8,00 16,00 9,00
TC4 8x17x10
Standard request
8,00 17,00 10,00
TC4 8x18x7
Standard request
8,00 18,00 7,00
TC4 8x20x10
Standard request
8,00 20,00 10,00
TC4 8x22x10
Standard request
8,00 22,00 10,00
TC4 8x22x11
Standard request
8,00 22,00 11,00
TC4 8x28x11
Standard request
8,00 28,00 11,00
TC4 9x21x10
Standard request
9,00 21,00 10,00
TC4 10x20x8
Standard request
10,00 20,00 8,00
TC4 10x20x9,5
Standard request
10,00 20,00 9,50
TC4 10x20x10,5
Standard request
10,00 20,00 10,50
TC4 10x21x7,5
Standard request
10,00 21,00 7,50
TC4 10x21x10
Standard request
10,00 21,00 10,00
TC4 10x22x7
Standard request
10,00 22,00 7,00
TC4 10x22x10
Standard request
10,00 22,00 10,00
TC4 10x22x11
Standard request
10,00 22,00 11,00
TC4 10x24x8
Standard request
10,00 24,00 8,00
TC4 10x28x13,4
Standard request
10,00 28,00 13,40
TC4 10x30x12
Standard request
10,00 30,00 12,00
TC4 10x32x12
Standard request
10,00 32,00 12,00
TC4 10x32x13,4
Standard request
10,00 32,00 13,40
TC4 10x37x12
Standard request
10,00 37,00 12,00
TC4 11x28x13,4
Standard request
11,00 28,00 13,40
TC4 12x25x7
Standard request
12,00 25,00 7,00
TC4 12x28x7
Standard request
12,00 28,00 7,00
TC4 12x30x7
Standard request
12,00 30,00 7,00
TC4 12x32x10
Standard request
12,00 32,00 10,00
TC4 12x33x10
Standard request
12,00 33,00 10,00
TC4 12x34x12
Standard request
12,00 34,00 12,00
TC4 12x37x12
Standard request
12,00 37,00 12,00
TC4 12x40x12
Standard request
12,00 40,00 12,00
TC4 13x22x7
Standard request
13,00 22,00 7,00
TC4 14x24x7
Standard request
14,00 24,00 7,00
TC4 14x28x7
Standard request
14,00 28,00 7,00
TC4 14x28x13,4
Standard request
14,00 28,00 13,40
TC4 15x24x5,5
Standard request
15,00 24,00 5,50
TC4 16x36x12
Standard request
16,00 36,00 12,00
TC4 18x30x6
Standard request
18,00 30,00 6,00
TC4 19x32x8
Standard request
19,00 32,00 8,00
TC4 20x30x5,5
Standard request
20,00 30,00 5,50
TC4 20x35x7
Standard request
20,00 35,00 7,00
TC4 20x40x10
Standard request
20,00 40,00 10,00
TC4 20x45x10
Standard request
20,00 45,00 10,00
TC4 22x40x10
Standard request
22,00 40,00 10,00
TC4 22x42x11
Standard request
22,00 42,00 11,00
TC4 22x47x8
Standard request
22,00 47,00 8,00
TC4 24x35x10,5
Standard request
24,00 35,00 10,50
TC4 25x36x5
Standard request
25,00 36,00 5,00
TC4 25x42x6,5
Standard request
25,00 42,00 6,50
TC4 25x50x15
Standard request
25,00 50,00 15,00
TC4 26x37x10,5
Standard request
26,00 37,00 10,50
TC4 26x40x8
Standard request
26,00 40,00 8,00
TC4 27x39x10,5
Standard request
27,00 39,00 10,50
TC4 27x40x10,5
Standard request
27,00 40,00 10,50
TC4 28x38x6,2
Standard request
28,00 38,00 6,20
TC4 30x40x7
Standard request
30,00 40,00 7,00
TC4 30x42x7
Standard request
30,00 42,00 7,00
TC4 30x42x10,5
Standard request
30,00 42,00 10,50
TC4 30x42x11
Standard request
30,00 42,00 11,00
TC4 30x43x8,5
Standard request
30,00 43,00 8,50
TC4 31x41x9,1
Standard request
31,00 41,00 9,10
TC4 31x43x10
Standard request
31,00 43,00 10,00
TC4 32x42x7
Standard request
32,00 42,00 7,00
TC4 32x43x10,5
Standard request
32,00 43,00 10,50
TC4 32x43x12,5
Standard request
32,00 43,00 12,50
TC4 32x44x6,7
Standard request
32,00 44,00 6,70
TC4 32x44x10,5
Standard request
32,00 44,00 10,50
TC4 32x45x7
Standard request
32,00 45,00 7,00
TC4 32x46x11
Standard request
32,00 46,00 11,00
TC4 32x52x9
Standard request
32,00 52,00 9,00
TC4 33x45x10
Standard request
33,00 45,00 10,00
TC4 33x45x11
Standard request
33,00 45,00 11,00
TC4 33x46x10,5
Standard request
33,00 46,00 10,50
TC4 34x46x10,5
Standard request
34,00 46,00 10,50
TC4 35x47x10
Standard request
35,00 47,00 10,00
TC4 35x48x8
Standard request
35,00 48,00 8,00
TC4 35x48x10,5
Standard request
35,00 48,00 10,50
TC4 35x48x11
Standard request
35,00 48,00 11,00
TC4 36x48x10,5
Standard request
36,00 48,00 10,50
TC4 37x50x11
Standard request
37,00 50,00 11,00
TC4 38x48x10
Standard request
38,00 48,00 10,00
TC4 38x50x10,5
Standard request
38,00 50,00 10,50
TC4 40x54x10
Standard request
40,00 54,00 10,00
TC4 41x53x10
Standard request
41,00 53,00 10,00
TC4 41x53x10,5
Standard request
41,00 53,00 10,50
TC4 41x53x11
Standard request
41,00 53,00 11,00
TC4 41x54x11
Standard request
41,00 54,00 11,00
TC4 42x55x8,5
Standard request
42,00 55,00 8,50
TC4 43x54x9,5
Standard request
43,00 54,00 9,50
TC4 43x54x11
Standard request
43,00 54,00 11,00
TC4 43x55x9
Standard request
43,00 55,00 9,00
TC4 43x55x10,5
Standard request
43,00 55,00 10,50
TC4 47x58x10
Standard request
47,00 58,00 10,00
TC4 48x59x10
Standard request
48,00 59,00 10,00
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