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Old 30 September 2012, 13:43   #1
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Brenderup Basics

Just replaced the bearings on my Brenderup trailer - back bearings virtually seized - on my new acquisition!

I am a bit concerned that there is no facility for greasing the back bearing other than removing the grease cap, castle nut and outer bearing.

If I fit a pair of bearing buddy's, will this do the Job for me? What is my best source for the bearing buddy's ?



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Old 30 September 2012, 14:11   #2
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Realistically, if nothing else is wrong (i.e. leaking grease seal, leaking dust cap), you shouldn't need to add grease too often. Grease is oil in a soap carrier/thickener, so it's not like the stuff gets used up as the bearing turns.

That said, bearing buddies do an OK job of allowing additional grease to be added; as long as you don't get too carried away pumping it in. It is possible to blow the rear grease seal out of shape due to overpressure. They will delay problems as long as you monitor the grease level. As for the "pressurization of the grease" helping keep water out, well, that hasn't been my experience.

The best ones I've found are the actual Bearing Buddy brand; they are a stainless body with a (usually blue) grease level indicator ring. More expensive than the cheaper aluminum body/aluminum cap, but seem to hold up much better.

No idea on availability on your side of the pond.

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Old 30 September 2012, 14:22   #3
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Hi, with standard taper roller bearings, stripping them down, cleaning and re-packing with grease is the norm, I'm afraid! Still, I'm not complaining, it keeps my kids fed

If you were of the persuasion then you could drill and tap the rear of the drum and fit a grease nipple (I've done it for a few people with unbraked trailers), but tbh, I'm not convinced there's any great gain. You still have to whip the wheel off and try and line the grease gun up, which can be a bit of a pita if the boats on it. Just as quick to strip it down and re-grease it IMO. Not only that, it gives you the opportunity to inspect the bearings at the same time. No point pumping grease in to a set of bearings that have rusted and are in their way it anyway

Bearing buddies / savers are great, more so if they're the spring assisted type, as these keep a continual pressure on the grease, pushing it in to the bearings when needed. The non-sprung ones are a bit like having a grease cap full of grease really. However, there's plenty of people on here who run both types, so you're bound to get feedback on both types.

If you measure the inside of your drum boss (where the dust cap pushes in) then you should be able to source a pair fairly readily from the web. Try Trailertek for starters, they've a pretty good selection.

All the best.
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Old 30 September 2012, 14:31   #4
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Thanks for that. If you were 'up north' I would get you to have a look!


The cap is 40mm so I will certainly have a look for a set of protectors / buddy's
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Old 30 September 2012, 16:01   #5
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No worries, that's what forums are for - spread the knowledge!

40mm is quite small, is it Alko running gear then?
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Old 30 September 2012, 16:16   #6
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Quote:
Originally Posted by Trailer Guy
No worries, that's what forums are for - spread the knowledge!

40mm is quite small, is it Alko running gear then?
Not sure!

Think this is the original set up from new. You've got me thinking though, I will get the tape out tomorrow and re-measure.

The set up is from Brenderup dated 2006
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Old 30 September 2012, 16:22   #7
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You'll need to be pretty accurate with your measurements - a set of verniers would be better than a tape. Or a steel rule, but verniers would deffo be the best.

If you get stuck finding a set at 40mm drop me a pm, I should be able to help.
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