Company Profile | rotary seals supplier

Rotary Seals Supplier: Radial Shaft Seals, Oil Seals and Lip Seals

Quick Answer: CORASEALS is a rotary seals supplier for oil seals, radial shaft seals, lip seals, V-rings, cassette seals, bearing seals, wheel hub seals, axle seals, gearbox seals and floating seals. Send the shaft diameter, housing bore, width, operating conditions and required quantity to get a selection and quotation.

CORASEALS supplies rotary shaft seals for maintenance teams, distributors, repair shops and OEM buyers. We focus on matching the seal profile, material, dimensions and lip configuration to the equipment operating conditions.

Rotary Seal Types Supplied

CORASEALS can supply standard and custom rotary seal styles. The common types include:

Radial shaft seals and oil seals with metal or rubber outside diameter
Single lip, double lip and dust lip designs
Spring-loaded lip seals and PTFE lip seals
V-rings used as secondary protectors on shafts
Cassette seals and bearing seals for contaminated environments
Wheel hub seals, axle seals and gearbox seals
Floating seals and mechanical face seals for final drives and track rollers

Type codes such as TC, SC, TB, VB and DC are common in the market. CORASEALS does not rely only on a type code to confirm interchange. We check the cross section, case design, lip arrangement and material against the application before quoting.

Specification Data Needed for a Rotary Seal Quote

Rotary seal selection is not only based on size. The shaft condition, lip material, shaft speed, temperature and sealed medium decide whether a standard seal will work. For a quotation, send the following information:

Shaft diameter at the seal contact area
Housing bore diameter and depth
Seal width or old seal dimensions in ID × OD × width
Operating temperature range and medium
Shaft speed in rpm and shaft surface finish if known
Pressure condition inside the housing
Existing part number, drawing or sample photo
Required quantity and target delivery needs

If you are replacing a failed seal, also describe the failure mode. High wear, lip hardening, cracking, leakage after short life and housing damage often point to a material or application problem.

Rotary Seal Materials and Selection

The most common rotary seal material is NBR. It handles many mineral oil and grease applications. FKM is normally selected when the temperature or chemical resistance requirement exceeds NBR capability. HNBR offers better heat and wear resistance than standard NBR in some equipment. EPDM is used for water, steam and brake fluid, but EPDM is usually not suitable for mineral oil. PTFE lip seals are used for low friction, dry running or chemically aggressive media.

Material	Common Use	Selection Note
NBR	Mineral oil, gear oil, grease	Common first choice for many oil seals. Confirm compound limits.
HNBR	Higher heat, abrasive oil	Better heat and wear resistance than standard NBR compounds.
FKM	High temperature, chemical exposure	Specify FKM when NBR cannot meet the operating conditions.
EPDM	Water, steam, brake fluid	Usually not suitable for mineral oil or fuel service.
Silicone	Low torque, wide temperature	Not normally used for high pressure unless the seal is designed for it.
PTFE lip	Low friction, chemical resistance, dry running	Requires careful shaft surface, runout and housing alignment review.

Seal hardness, spring load and lip geometry are also important. A harder lip may im