240 Volvo front wheel bearing rubber seal.

mgs · Jun 6th, 2020, 14:15

Hi everyone, hope someone can help, just replacing the front wheel bearings and I don't know which way round the seal goes.It is flat one side and beveled the other. Thanks Mike.

rustytoba · Jun 6th, 2020, 19:27

Hi,

I've fitted a few and normally fit the flat side on the stub axle so that the bevelled side faces the bearing to stop the grease spreading out towards the brake disc.

Scott

Clifford Pope · Jun 8th, 2020, 07:09

I've always assumed that the plain flat side of a seal faces away from the bearing, with the side that is cut away with the spring inside facing the source of the grease or oil.
I image the pressure of the lubricant trying to escape pressing the seal lip outwards, and the spring tightening it round the shaft to prevent escape that way.

Bob Meadows · Jun 8th, 2020, 10:20

Which way does a bearing seal go?
Understanding Wheel Bearing Seals. A seal must always be installed so that the sealing lip is facing the fluid to be sealed. This is because the lip is made so that pressure applied to it from the “wet” side of the seal will tend to increase the pressure the lip applies to the shaft.

Jun 6th, 2020, 14:15	#1
mgs Junior Member Last Online: Jan 20th, 2024 20:27 Join Date: May 2011 Location: bodmin	240 Volvo front wheel bearing rubber seal. Hi everyone, hope someone can help, just replacing the front wheel bearings and I don't know which way round the seal goes.It is flat one side and beveled the other. Thanks Mike.

Jun 6th, 2020, 19:27	#2
rustytoba Master Member Last Online: Nov 24th, 2023 01:11 Join Date: Dec 2009 Location: Glasgow	Hi, I've fitted a few and normally fit the flat side on the stub axle so that the bevelled side faces the bearing to stop the grease spreading out towards the brake disc. Scott

Jun 8th, 2020, 07:09	#3
Clifford Pope Not an expert but ... Last Online: Today 17:48 Join Date: Dec 2001 Location: Boncath	I've always assumed that the plain flat side of a seal faces away from the bearing, with the side that is cut away with the spring inside facing the source of the grease or oil. I image the pressure of the lubricant trying to escape pressing the seal lip outwards, and the spring tightening it round the shaft to prevent escape that way.

Jun 8th, 2020, 10:20	#4
Bob Meadows Premier Member Last Online: Today 19:14 Join Date: Sep 2017 Location: STANDISH LANCASHIRE	Which way does a bearing seal go? Understanding Wheel Bearing Seals. A seal must always be installed so that the sealing lip is facing the fluid to be sealed. This is because the lip is made so that pressure applied to it from the “wet” side of the seal will tend to increase the pressure the lip applies to the shaft.

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