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Datasheet - 30X55X10 HMSA10 RG

COO (Country of Origin):: CN

SKF Radial Shaft Seal, 30mm Inside Diameter, 55mm Outside Diameter - 30X55X10 HMSA10 RG

This radial shaft seal provides a sealing solution for rotating shafts, designed to prevent fluid leakage and exclude contaminants in rotary assemblies. It is intended for applications where a polymer lip contacts a moving shaft to maintain oil retention and environmental exclusion during shaft rotation.

Features and Benefits:

• Nitrile rubber construction resists common oils and greases
• Rotary lip geometry supports continuous shaft motion
• 10mm wall section offers robust axial sealing force
• 30mm inside diameter enables tight shaft conformity
• 55mm outside diameter allows secure housing fit

Applications

• Suitable for sealing rotating shafts in gearboxes
• Ideal for oil retention in pump assemblies
• Used with motor shafts requiring oil exclusion
• Can be used for maintenance replacements in industrial drives
• Suitable for use where contaminant exclusion is required

What material composes the sealing lip and why is it chosen?

The lip is MADE from nitrile rubber which provides compatibility with petroleum-based lubricants and general-purpose hydraulic fluids.

How should the component be installed to ensure correct sealing?

It should be pressed into the housing bore evenly so the outside diameter seats uniformly and the inner lip contacts the shaft without distortion.

What shaft size tolerance should be considered for optimal performance?

The inside diameter is specified at 30 mm, so a matching shaft diameter with minimal radial runout and appropriate interference ensures effective lip contact.

How does the seal accommodate rotary motion during operation?

The design relies on a flexible elastomer lip that maintains contact with the rotating shaft, creating a dynamic barrier against fluid escape and ingress.

Select all	Attribute	Value
	Brand	SKF
	Product Type	Radial Shaft Seal
	Inside Diameter	30mm
	Outside Diameter	55mm
	Seal Type	Rotary Shaft Seal
	Thickness	10mm
	Seal Material	Nitrile Rubber (NBR)

	Select all
	Brand SKF
	Product Type Radial Shaft Seal
	Inside Diameter 30mm
	Outside Diameter 55mm
	Seal Type Rotary Shaft Seal
	Thickness 10mm
	Seal Material Nitrile Rubber (NBR)

SKF Nitrile Rubber (NBR) Radial Shaft Seal, 30 mm ID, 55 mm OD, 10 mm

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