NTN 6806 LLU 30x42x7 Fully Contacting Seal BB30

(19 customer reviews)

£24.50 (£29.40 UK Customers)

NTN 6806 LLU 30x42x7 Fully Contacting Seal Genuine Bearing,

8 in stock

SKU: BRG-NTN-6806-LLU Categories: ,


This is a Genuine Bearing and not counterfeit or B grade Stock. Read more about this here

  • CN normal clearance
  • Teflon impregnated grease
  • Premium Tier 1 supplier
  • Most sizes are made in Japan, smaller sizes are made in Taiwan

NTN Corporation (Niwa, Tomoe, Nishizono) are one of the largest exporters of bearings and friction reducing products in Japan, their bearings are found in many items such as Cars, Motorbikes and Jet engines. NTN are an OEM supplier to Shimano, Mavic, Time and Look in the bicycle industry. NTN supply Rolls-Royce, General Electric, Pratt and Witney with bearings for Jet Engines.

NTN bearings have highly engineered seals that have been incrementally improved over time. Their fully sealed and ultra low friction seals have the lowest friction values in their respective categories. These bearings are the preferred brand for Hambini Bottom Brackets.

These bearings are genuine NTN bearings supplied directly from NTN’s European Warehouse in France. They are not counterfeit or B grade stock.

Hambini is the largest supplier of NTN bicycle bearings in Europe


Q. What is the best bearing brand?

NTN, NSK, FAG and SKF are all quality bearing suppliers and their products meet ISO/JIS/DIN standards. When selecting a bearing it is important to ensure that the bearing fits correctly within the enclosure. Far eastern bearings sold on ebay or amazon are often out of specification in one or multiple parameters, these fit issues manifest themselves as creak or poor bearing life. Some sellers have been known to sell fake bearings which are very difficult to spot without specialized measuring equipment, fitting these usually presents the same problems. In short, fitting genuine branded bearings is recommended

Q. Which seals do you recommend?

For road racing, NTN LLB series, SKF RZ series and NSK VV series are recommended. For inclement weather or extended life, NTN LLU series, SKF 2RS series, NSK DD series or FAG 2RS series are recommended

Q. Which bearings have the lowest friction?

NTN LLB series followed by NSK VV series, SKF RZ series and then FAG BRS series

Q. How many bearings is this listing for?

All bearings on this website are sold in Singles unless otherwise stated

Additional information

Inside Diameter (d)

Outside Diameter (D)

Width (b)



Bearing Number

19 reviews for NTN 6806 LLU 30x42x7 Fully Contacting Seal BB30

  1. Stephen Cottle

    The bearings were posted and delivered very quickly when they came in stock. Indeed I could not find any alternative UK suppliers with stock and the price was very competitive. I very much appreciated the advice on the best bearings for bb30. Thanks

  2. Kerr Glen

  3. Martyn L.

    Installed in my Cannondale Topstone Carbon. I now have a super smooth crank and no creaking so very pleased. Only slight criticism would be the postage was a bit expensive but very quick so I can put up with that. Many thanks

  4. Jeremy Leake

    Great bearings and delivered quickly

  5. Richard Harrison

  6. Dave Nagy

    Great bearings and extremely fast service!

  7. David N.

    Great product and fast shipping!

  8. Martin Kells

    Great customer service with Hambini going the extra mile. The bearings are a substantial improvement on the stock bearings which came with the bike.

  9. Klaus

    Fast shipping! Thank you Hambini!

  10. Anonymous

  11. Anonymous

    Arrived problem free to toronto in three weeks

  12. Colin Black

    Arrived next day bearings as described

  13. Barry Scully

    I love that you are selling gear that is properly engineered and not hyped by marketing. Quality bearings and more importantly, genuine not fakes

  14. James

  15. Adrian

    Very prompt delivery. Bearings appear to be very smooth.

  16. Gavin N.

    good reliably sourced bearing. Didn’t help getting me to know my hairdresser

  17. Richard Smith

    Bearings arrived quick and can’t fault the quality. Was worried the full contacting seal might feel a bit draggy, but actually on the road don’t notice a difference. Looking forward to having bearings that won’t rust in 7 months like the old FSA ones!

  18. Anonymous

  19. Matthew

    Have not installed yet.

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Q & A

I bought a pair of "NTN 6806 LLU 30x42x7 Fully Contacting Seal BB30" I compared them with the old bearings in a cyclocross frame (for competition) and a pair of new unused and unassembled "regular BB30 bike bearings" from a bike shop. When turning the bearings in the hand the "NTN 6806 LLU 30x42x7 Fully Contacting Seal BB30" seem to have a MUCH higher resistance than cheaper regular bearings. -How do you measure bearing resistance in a competition? -Do the NTN bearings need a breaking in period to become smoother turning? -Is the advantage in friction or cycling speed or is the advantage of the NTN bearings or is the advantage pure in other aspects (which)? TP asked on 19 January 2022
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