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  • 3x21.8mm Rounded End Loose Needle Rollers
3x21.8mm Rounded End Loose Needle Rollers
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3x21.8mm Rounded End Loose Needle Rollers

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Equivalent to: NRA3x21.8
New From:  £3.54  ex VAT This item is available from stock

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Loose Needle Roller Bearings: High Quality Graded Hardened Chrome Steel roller made from Chromium AISI 52100 steel. Hardened to 60-67 Rockwell Scale equivalent to 700-900 HV (Vickers Scale) and are hardened all the way through the roller. These are the same hardened steel rollers used to manufacture needle roller bearing assemblies and have a high duty and life cycle. These hardened rollers are highly suited as replacements for bearing components, drive transmission parts, pivots, shafts etc.
Benefits: Hardened and ground, precision components, AISI 51200 chrome steel, 60-67 Rockwell hardness

Brand / Quality: Simply Ital Ball - High Quality
Outside Diameter: 3mm
Length: 21.8mm
Loose Roller tolerances

  • Jaylin Gilbert, United Kingdom 19/02/2019

    5 of 5 Stars!
    excellent service,arrived next day Thank you

  • Juan Darien, United Kingdom 29/01/2019

    5 of 5 Stars!
    Thanks again very happy customer

  • Colten Leonard, United Kingdom 14/12/2017

    5 of 5 Stars!
    Arrived the next day, with super cheap prices but exceptioanl quality

  • Keenan Payne, United Kingdom 11/06/2015

    5 of 5 Stars!
    Ordered over the phone with the sales team and they arrived the following morning. Brilliant service.


    5 of 5 Stars!
    I ordered a large amount of these and was happily surprised with the packaging. Great little items and do exactly what I needed them to do.

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3x21.8mm Rounded End Loose Needle Rollers

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Simply bearings are the UK's largest online retailer of bearings, seals, belts, chains, sprockets, lubricants and other associated power transmission equipment.
Simply Bearings Ltd, Halton House, Greenfold Way, Leigh
Greater Manchester
United kingdom

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