The company supports customized processing. as there are many
types, specifications and models of seals, the marked price and
inventory of products in the factory will change according to the
actual situation. customers are requested to consult customer
service before taking pictures of the products, confirm the price
and the delivery date before placing orders. the orders will be
subject to negotiation between the two parties.
Tc framework oil seal specification| Model | 25*41.25*6 | | Color | Black and brown, can also be customized color |
| Material | NBR | | Characteristics | Corrosion resistance, high temperature resistance, wear resistance |
| Price | USD0.038-USD0.04 | | Packing | Plastic bag packaging, a bag of 100, can also be packaged according
to customer requirements |
The function of the skeleton oil seal is generally to isolate the
parts in the transmission parts that need lubrication from the
output parts so as not to let the lubricating oil leak. it is
usually used for the rotary shaft and is a kind of rotary shaft lip
seal. The framework acts as a reinforcing steel bar inside the
concrete member and enables the oil seal to maintain its shape and
tension. According to the skeleton type, it can be divided into
inner skeleton oil seal, outer skeleton oil seal, and inner exposed
skeleton oil seal. Skeleton oil seal is made of high quality
nitrile rubber and steel plate, with stable quality and long
service life. Widely used in automobile, motorcycle crankshafts,
camshafts, differentials, shock absorbers, engines, axles, front
and rear wheels, etc.
1. prevent sand, dust, water vapor, etc. from invading the bearing
from outside;
2. limit the leakage of lubricating oil from the bearing. The
requirement for oil seal is that the dimensions ( inner diameter,
outer diameter and thickness ) should conform to the regulations.
Proper elasticity is required to properly clamp the shaft and play
a sealing role. Heat resistance, wear resistance, good strength,
medium resistance ( oil or water, etc. ) and long service life.
When using oil seal reasonably, the following points should be paid
attention to:
( 1 ) due to design and structural reasons, high-speed oil seals
should be used for high-speed shafts and low-speed oil seals should
be used for low-speed shafts. low-speed oil seals cannot be used
for high-speed shafts, and vice versa.
( 2 ) when the ambient temperature is relatively high,
polypropylene ester or silicon, fluorine and silicon fluorine
rubber should be selected. And should try to reduce the oil
temperature in the oil tank. Cold resistant rubber should be used
when the service temperature is too low.
( 3 ) the oil seal with normal pressure has poor ability to
withstand pressure. when the pressure is too high, the oil seal
will deform. Pressure bearing rings or reinforced pressure seal
should be used under the condition of excessive pressure.
( 4 ) the degree of eccentricity of the oil seal when installed and
the shaft are too eccentric, the sealing performance will
deteriorate, especially when the shaft speed is high. If the
eccentricity is too large, the oil seal with " w" cross section can
be used.
( 5 ) the surface finish of the shaft directly affects the service
life of the oil seal, that is, the service life of the oil seal
will be long if the shaft finish is high.
( 6 ) pay attention to a certain amount of lubricating oil at the
lip of the oil seal.
( 7 ) special attention should be paid to prevent dust from
entering the oil seal.
