Run capacitor value .Bench grinder

This topic has 11 replies, 7 voices, and was last updated 29 August 2023 at 06:49 by EJ Fuller.

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4 June 2020 at 11:02 #477408
Gerard O’Toole
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@gerardotoole60348
I need to replace the capacitor in my small hobby bench grinder. it is a CBB61 2.5uF .

I have ordered from China on EBay but I would like to get one faster. A UK supplier has both 2uF or 4uF available ( but not 2.5uF). I wonder if anyone would know if either the 2uF or 4uF would be safe to use in this application..

thanks
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4 June 2020 at 11:02 #27420
Gerard O’Toole
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@gerardotoole60348
4 June 2020 at 12:32 #477432
AdrianR
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@adrianr18614
Try rs components, not the cheapest, but they are quick and you know what you get will be OK

**LINK**

Adrian
4 June 2020 at 12:57 #477435
peak4
Participant
@peak4
I've used this ebay company in the past and had quick delivery; You could always contact them and ask for 1st class post, rather than 2nd class, or the £7 option.
They list a CBB61, the small flat one, as opposed to a CBB60, the larger round one.
https://www.ebay.co.uk/itm/CBB61-1-1-2-1-5-2-3-4-5-6-8-10-12-uF-AC-450V-Ceiling-Fan-Motor-Running-Capacitor/173277164950?hash=item28581fb596:m:mBW6qq8UV6rrdcID-9GY5Lw

Bill
4 June 2020 at 13:03 #477437
Brian Sweeting 2
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@briansweeting2
Have you tried your local electrical wholesaler, if you have one?
4 June 2020 at 13:28 #477446
Gerard O’Toole
Participant
@gerardotoole60348
Thanks for all the suggestions

Brian, there are no electrical wholesalers open near me ( due to Covid 19 lockdown) and no general hardware stores that are open can help at all..

Adrian, RS don't list this particular capacitor and I am not competent enough to select an equivalent

Bill, your link looks good but does not post to my address. However I have found this UK Ebay seller who can post to me but only has the 2 and 4uF sizes. I am just not too sure what the effect of lower or higher values for capacitance on the motor would be. From what I have read , in general, exact values don't appear to be so important. I have ordered the Chinese capacitor but I would prefer get one faster if at all possible.

thanks for all replying

gerard
4 June 2020 at 13:45 #477452
not done it yet
Participant
@notdoneityet
A 2 and a 0.5 micro Farad capacitors in parallel?
4 June 2020 at 13:55 #477453
Brian Wood
Participant
@brianwood45127
Gerald,

I don't think you will do any harm to the motor by going for the 4 uF version, the values are not that precise anyway and often have a wide tolerance.

Better that direction than going too small.

Regards Brian
4 June 2020 at 14:11 #477456
Gerard O’Toole
Participant
@gerardotoole60348
Posted by Brian Wood on 04/06/2020 13:55:31:

Gerald,

I don't think you will do any harm to the motor by going for the 4 uF version,…

Better that direction than going too small.

Regards Brian

Thanks Brian,

I will order the 4uF one

regards

gerard
4 June 2020 at 17:28 #477501
AdrianR
Participant
@adrianr18614
Gerald you can get a 2.5uF CBB61 on ebay **LINK** that says it is a uk supplier

FYI any 450V AC 2.5uF Polypropylene film capacitor will do.

Adrian

Edited By AdrianR on 04/06/2020 17:30:35
4 June 2020 at 18:33 #477517
Gerard O’Toole
Participant
@gerardotoole60348
Thanks Adrian

but he doesn't post to Ireland

thanks
29 August 2023 at 06:49 #658353
EJ Fuller
Participant
@ejfuller39032
I have an old BG6 bench grinder. I have reason to believe the run capacitor if bad.

It is a CBB60. There is no capacitor value listed. Does anyone happen to know the value of the capacitor? The grinder was made in China. I am located in the USA.

Thank you in advance for your help.
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