↓ Advertise on Defender2 ↓

Home > Td5 > TD5 Idler pulley bearings - Replacement
Post Reply  Down to end
Page 1 of 2 12>
Print this entire topic · 
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
TD5 Idler pulley bearings - Replacement
So, I have fallen foul of fitting a replacement pulley to Miffy without checking whether the bearing inside the pulley had any grease. Nope, pretty much dry as a bone in there. So I have greased it, but it will need replacing at the next service.

The pulleys in question are:

ERR6658 - Idler pulley all engines.

ERR6493 - Idler pulley non-AC



I suspect they are the same bearing inside, but does anyone else know for certain?

Any bearing part numbers for SKF or Timken or alike?




A quick search provided these measurements for ERR6493

ID: 17mm
OD: 47mm
W: 14mm

From this website https://www.bearingoptions.co.uk/replaceme...ey-bearing
Post #1014233 7th Nov 2023 3:24pm
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
Ok, confirmation through a deep dive into the search panel gives me this thread

https://www.defender2.net/forum/post941642.html

So both pulleys use the same bearing. That is one question answered. Thumbs Up

and the bearings both had 6303 LHA embossed on them, which is the same bearing, according to a Russian site as SKF 6303.2RSR.C3.

So, looks like I am heading in the right direction.
Post #1014246 7th Nov 2023 5:03pm
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
A bit of extra learning this evening. To tell you the truth I have never paid attention to what the numbers on bearings actually mean.

So the 6303 2RSR C3 code means:

The '6' = Deep groove ball bearing (single row) - Suitable for light axial loads as well as radial loads.

'303' = Bore diameter I believe

'2RS' = Bearing with rubber seal on both sides. RS provides a better seal but more rolling friction than 2Z (Bearing with metal seal on both sides)

'2' = TBC

C3 = Internal clearance code.

Fascinating really, well it is to me anyway.
Post #1014259 7th Nov 2023 5:52pm
View user's profile Send private message View poster's gallery Reply with quote
barbel jim



Member Since: 12 Dec 2012
Location: Northants
Posts: 1423

United Kingdom 2005 Defender 90 Td5 HT Tonga Green
I did mine not that long ago, and genuine land rover were on back order Big Cry
Post #1014261 7th Nov 2023 5:56pm
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
And probably will be for quite some time I would expect.

Apparently the above bearing code is the OE bearing used on some Mercedes Benz's.

OE 990 990 74 00 — MERCEDES-BENZ
OE A 990 990 74 00 — MERCEDES-BENZ
OE N 000625 436303 — MERCEDES-BENZ
Post #1014263 7th Nov 2023 6:02pm
View user's profile Send private message View poster's gallery Reply with quote
Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2106

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
geobloke wrote:
A bit of extra learning this evening. To tell you the truth I have never paid attention to what the numbers on bearings actually mean.

So the 6303 2RSR C3 code means:

The '6' = Deep groove ball bearing (single row) - Suitable for light axial loads as well as radial loads.

'303' = Bore diameter I believe

'2RS' = Bearing with rubber seal on both sides. RS provides a better seal but more rolling friction than 2Z (Bearing with metal seal on both sides)

'2' = TBC

C3 = Internal clearance code.

Fascinating really, well it is to me anyway.


Thanks for sharing - sadly I too find that interesting!

Whilst on the subject of idler pulleys - I’ve had a couple of non LR pulleys that have been awful quality so I’d tend to opt for LR.
Post #1014265 7th Nov 2023 6:07pm
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
I believe this is where my issue stems from. Poor quality bearings that may or may not have been greased. The pulleys seem fine and I hate to throw away perfectly serviceable items, hence replacing the faulty bearings.

Goodness, prices go up and quality goes down... Big Cry
Post #1014268 7th Nov 2023 6:21pm
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
Bearings ordered Thumbs Up £11 all in for a pair of Timken bearings. Cannot complain at that price.

Buying the full pulleys would cost £55.05 before P&P for Britpart items and a whooping £159.61 for LR items Rolling Eyes

Just need a little vice and drift action and job done.
Post #1014270 7th Nov 2023 6:33pm
View user's profile Send private message View poster's gallery Reply with quote
Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2106

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
Ah Timken - Carlsberg Thumbs Up
Post #1014335 8th Nov 2023 7:51am
View user's profile Send private message View poster's gallery Reply with quote
rustandoil



Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 745

England 2005 Defender 110 Td5 XS DCPU Bonatti Grey
This is good stuff, well done for searching out the bearing numbers Thumbs Up
Post #1014342 8th Nov 2023 9:09am
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
No problem. I will see how feasible the bearing swap actually is when they arrive Thumbs Up
Post #1014348 8th Nov 2023 9:34am
View user's profile Send private message View poster's gallery Reply with quote
rustandoil



Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 745

England 2005 Defender 110 Td5 XS DCPU Bonatti Grey
It would be great if you could report back here with your results Thumbs Up
Post #1014366 8th Nov 2023 11:58am
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
Of course. Goes without saying Thumbs Up
Post #1014369 8th Nov 2023 12:07pm
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17443

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I did a similar exercise not too long ago on my 2.4 Puma and replaced nearly all of the supposedly non-replaceable bearings. It was relatively quick, relatively cheap, and hugely satisfying!
Post #1014427 8th Nov 2023 6:26pm
View user's profile Send private message View poster's gallery Reply with quote
geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
It is all about the satisfaction Thumbs Up
Post #1014428 8th Nov 2023 6:28pm
View user's profile Send private message View poster's gallery Reply with quote
Post Reply  Back to top
Page 1 of 2 12>
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums