Skeleton oil seal O-ring X-ring
Skeleton oil seal is an important part O-ring is a kind of rubber sealing ring The star ring is the most commonly
of mechanical seals, which are widely with a circular cross-section, which is used seal in hydraulic cylinders, and it
used in various mechanical called an O-shaped rubber sealing ring is a typical lip seal
equipment to prevent the leakage of because of its O-shaped cross-section
lubricating oil or other liquid media
Guide ring Combined sealing washer Guidance tape
Parts used on the piston or piston Sealed components specifically The guide belt is a guide that
rod of hydraulic cylinders or cylinders designed to prevent oil or other prevents the wear of the cylinder and
to support the movement of the lubricants from leaking from openings piston rod and protects the seal seal
piston or piston rod in machines or equipment while
preventing contaminants from entering
Skeleton oil seal
The skeleton oil seal is also called the rotary shaft lip seal, the oil seal we call in daily life is the skeleton oil seal, the role of the oil seal is to isolate the parts that need to be lubricated in the transmission parts from the external environment, so as not to let the lubricating oil leak. The skeleton is like the steel bar in the concrete component, which plays a role in strengthening and enabling the oil seal to maintain its shape and tension. The skeleton oil seal is generally used with the bearing, placed outside the bearing to prevent the dust from entering the cavity, and also to prevent the lubricating oil in the bearing from leaking out. Commonly used skeleton oil seal forms are TC, SC, TB, SB, etc.
Common use cases:
● Automobile skeleton oil seal
● Industrial skeleton oil seal
● Motor skeleton oil seal
● Torque converter skeleton oil seal
● Vacuum pump skeleton oil seal
● Oil seal of shock absorber frame
● Gearbox skeleton oil seal
O-ring
O-rings are static or dynamic sealing rings that are installed inside a groove. Unlike other seals that require special installation tools, o-rings are easy to install and are the most versatile seals. In the field of sealing grease, water, air, gas and other fluids, it can provide axial or radial sealing solutions It is suitable for almost all fields of industry, in the specified temperature, pressure, and different liquid and gaseous media, in the static or moving state of sealing role, widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and all kinds of instrumentation. Various types of sealing elements are used in a large number of applications.
Working Pressure: 0-300MPa;
Working speed: ≤15m/s;
Operating temperature: -55-250 degrees.
Applicable media: Hydraulic oil, gas, water, slurry, crude oil, emulsion, water-glycol, acid
Guide rings
The guide ring is a piston or piston rod hydraulic cylinder or cylinder use, which supports the piston or piston rod moving parts, it can prevent the piston or piston rod from direct contact and friction of the cylinder body during the movement, and protect the cylinder block and piston or piston rod from damage.
The use of support guide rings has the following advantages:
(1) No cylinder pull-out, small leakage. No matter how severe the "tension" phenomenon is, there will be no "pulling cylinder" phenomenon, and the leakage is reduced due to the high coaxiality of the friction pair and the more uniform radial clearance.
(2) Polish, thinn and protect the inner wall of the cylinder.
The support ring on the piston slides back and forth with respect to the cylinder inner wall,
which is equivalent to polishing the cylinder inner wall with a soft substrate.
Therefore, the lower the surface roughness, the better.Tiny metal powders that have
been polished are embedded in the soft surface of the ring to protect the seal.
(3) Good bearing capacity and easy replacement.
PTFE bearing rings are resistant to (25~30) MPa,
and reinforced glass fiber synthetic resin is resistant to (270~350)
MPa. The guide ring is open (floating) and easy to replace after wear.
X-ring
The X-ring can be installed in a dedicated groove with a low compression ratio to reduce friction, but it can also be used in an o-ring groove of the same size. X-ring has lower friction, can overcome torsion better, and can obtain better lubrication; It can be used as a motion sealing element at lower speeds, and it is also suitable for static sealing; It is an improvement and enhancement on the basis of the performance of the O-ring.
Characteristics of X-ring:
Compared to O-rings, the x-ring has less friction resistance, start-up resistance, due to the lubrication cavity formed between the sealing lips.
● Since its flash position is in the recess of the cross-section, the sealing effect is good
● Non-circular cross-section to avoid rolling during reciprocating motion
● X-ring is a four-lip seal with a shape similar to X
● The structure of the x-ring is the same as that of the O-ring
Combined sealing washer
The combination seal is a bi-acting piston seal. This integrated design combines sealing and guiding functions in compact form, suitable for installation in closed grooves. The anti-extrusion rings prevent seal migration into gaps, while the central serrated-profile sealing ring ensures effective static and dynamic sealing. Wear-resistant guide rings provide radial load bearing and piston alignment. Applications: Widely used in reciprocating hydraulic cylinders/pistons.
Technical data:
● Pressure: <35MPa
● Max.speed: 0.5m/s
● Temperature: -30°C to +110°C
● Media: Compatible with petroleum-based oils,
fire-resistant fluids, and bio-based hydraulic fluids.
Working principle:
Three sealing lips on outer diameter:
1. Two auxiliary sealing lips on both sides
2. Wider central main sealing lip creates static seal at groove base
3. Stepped anti-rotation design with dual anti-extrusion support
