 | Home > Td5 > TD5 Idler pulley bearings - Replacement |
 
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410  
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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 |
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7th Nov 2023 3:24pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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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. 
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. |
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7th Nov 2023 5:03pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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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. |
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7th Nov 2023 5:52pm |
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| barbel jim Member Since: 12 Dec 2012 Location: Northants Posts: 1423 
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I did mine not that long ago, and genuine land rover were on back order
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7th Nov 2023 5:56pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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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 |
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7th Nov 2023 6:02pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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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... |
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7th Nov 2023 6:21pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Bearings ordered
£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 
Just need a little vice and drift action and job done. |
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7th Nov 2023 6:33pm |
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| Screbble Member Since: 26 Apr 2015 Location: Lancashire Posts: 2106 
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Ah Timken - Carlsberg
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8th Nov 2023 7:51am |
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| rustandoil Member Since: 08 Sep 2012 Location: Cotswolds Posts: 745  
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This is good stuff, well done for searching out the bearing numbers
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8th Nov 2023 9:09am |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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No problem. I will see how feasible the bearing swap actually is when they arrive
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8th Nov 2023 9:34am |
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| rustandoil Member Since: 08 Sep 2012 Location: Cotswolds Posts: 745
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It would be great if you could report back here with your results
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8th Nov 2023 11:58am |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Of course. Goes without saying
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8th Nov 2023 12:07pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443 
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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!
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8th Nov 2023 6:26pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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It is all about the satisfaction
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8th Nov 2023 6:28pm |
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