Company Profile

Floating Seal Quote: Dimensions, Equipment Data and Material Requirements

Quick Answer: To get a floating seal quote from CORASEALS, send the metal ring outer diameter, inner diameter and ring height, the loading ring material, the equipment make and model, and the required quantity. If you have an OEM part number or a sample photo, include that information too. CORASEALS checks the dimensions and application conditions before preparing the price.

Floating seals are used in final drives, travel motors, track rollers, axles and enclosed gear housings on excavators, dozers, loaders, mining machines and agricultural equipment. Floating seals keep oil inside the gear cavity and keep dirt, dust, mud and water outside. The sealing effect comes from two metal sealing rings that run against each other. Rubber loading rings sit behind the metal rings and maintain face contact.

A floating seal quote needs more input than a standard oil seal quote. A standard oil seal has a shaft diameter, housing bore and width. A floating seal has a pair of metal rings and a pair of rubber loading rings. The ring height, face condition, housing compression and loading ring material affect fit and service life. CORASEALS asks for these details so the quoted floating seal matches the original cavity and the operating conditions.

Floating seals are normally replaced as a matched set. Each set includes two metal rings and two rubber loading rings. CORASEALS quotes the full floating seal set unless the customer only needs one ring for measurement or sample confirmation.

Information Required for a Floating Seal Quote

Send the following details. More complete data produces a faster and more accurate floating seal quote.

• Metal ring outer diameter, inner diameter and ring height in mm or inch
• Rubber loading ring material or compound
• Equipment make, model and final drive or track roller position
• OEM part number, drawing, sample photo or old seal photo
• Oil type, grease type and ambient temperature range
• Required quantity and annual demand

Do not measure only the rubber loading ring. The metal ring dimensions are the critical fit dimensions.

How to Measure a Floating Seal for a Quote

Measure the metal sealing ring. Record the outer diameter at the largest point, the inner diameter at the bore, and the total ring height with the metal faces closed in the installed position. Do not measure the rubber ring only. The rubber ring is flexible and may have a worn shape. The metal ring dimensions are the primary data for a replacement floating seal.

For equipment owners, the fastest method is to provide the final drive or track roller model and the OEM part number. If the part number is unknown, take a clear photo of the seal with a caliper reading across the outer diameter and inner diameter. CORASEALS compares the measurements with available floating seal specifications and confirms the fit before quoting.

Floating Seal Materials and Application Conditions

Metal ring material affects wear resistance and face hardness. Common metal ring choices include cast iron and alloy steel grades. The correct grade depends on the speed, oil condition and contamination level. Rubber loading ring material must match the oil and ambient conditions. NBR, HNBR, FKM and silicone are common loading ring materials. Each material has different oil resistance, temperature limits and compression behaviour. CORASEALS does not guess the material. The quote is based on the original equipment requirement or the operating condition supplied by the customer.

When requesting a floating seal quote, tell CORASEALS the oil type and the maximum contact temperature. Oil type and maximum contact temperature are important for track rollers and final drives that run in mud, water or high ambient heat. The loading