• 7mm Diameter Grade 100 Hardened AISI 420 Stainless Steel Ball Bearings
7mm Diameter Grade 100 Hardened AISI 420 Stainless Steel Ball Bearings
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7mm Diameter Grade 100 Hardened AISI 420 Stainless Steel Ball Bearings

0.000100kg
New From:  £3.40  ex VAT This item is available from stock

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Industry Standard Grade 100 420 Stainless Ball Bearings: High Quality Graded 420 Stainless Steel Ball bearings made from AISI 420 Stainless Steel with a hardness of 52 -55 HRC Rockwell Scale, the hardness is all the way through the ball. These are the same stainless 420 steel balls used to manufacture bearing assemblies and have a high duty and life cycle.
The most commonly used martensitic stainless steel giving fair corrosion resistance to fresh water, steam, petrol, alcohol, blood, sweat, oils and foodstuffs.
Manufactured in compliance to the following international standards: AISI 420 / BS970 420S37 420S45 / DIN 1.4021, 1.4025, 1.4034 / AFNOR Z30C13, Z40C14 / JIS SUS 4200JI, 420J2

Brand / Quality: Simply Ital Ball - High Quality
Ball Diameter: 7mm
Material
=
420 Stainless Steel
Min Crush Load
=
2700kg
Hardness
=
52-55 HRC
Hardness Depth
=
Through Hardened
Corrosion Resistance
=
Good
Note
=
Not Drillable
Weight Each
=
1.40g
Attracted to Magnets
=
Yes
Avg Qty / Litre
=
3400


Steel Ball Measuring Diameter
  • These stainless steel balls are made from AISI 420 Stainless Steel.
  • Uniformly hardened and tempered all the way through the ball to achieve maximum strength and quality
  • Ball hardness is controlled within the 52 - 55 HRC range as measured on parallel flat surfaces.
  • Ball grades are defined numerically 100 - 1000 (50 being highest quality available in 420 stainless, 1000 is the lowest)
  • 420 Stainless balls are attracted to magnets
GRADES
Grade
Diameter Tolerance Per Ball
Sphericity Diameter Tolerance per Unit Container Diameter Tolerance
Max Surface Roughness
-
Inch
µ
Inch
µ
Inch
µ
Inch
µ
Inch
µ
3
0.000003
0.076
0.000003
0.076
0.000005
0.127
±.00003
±0.076
0.5
0.013
5
0.000005
0.127
0.000005
0.127
0.000001
0.25
±.000005
±0.127
0.8
0.02
10
0.00001
0.25
0.00001
0.25
0.00002
0.51
±.0001
±2.5
1
0.025
15
0.000015
0.38
0.000015
0.38
0.00003
0.76
±.0001
±2.5
1.2
0.03
25
0.000025
0.63
0.000025
0.63
0.00005
1.27
±.0001
±2.5
1.5
0.038
50
0.00005
1.27
0.00005
1.27
0.0001
2.5
±.0002
±5
3
0.075
100
0.0001
2.5
0.0001
2.5
0.0002
5
±.0005
±5
5
0.125
200
0.0002
5
0.0002
5
0.0004
10
±.0010
±10
8
0.2
300
0.0003
7.5
0.0003
7.5
0.0006
15
±.0015
±37.5
Not applicable
Not applicable
500
0.0005
12.5
0.0005
12.5
0.001
25
±.002
±50
Not applicable
Not applicable
1000
0.001
25
0.001
25
0.002
50
±.005
±125
Not applicable
Not applicable
2000
0.002
50
0.002
50
0.004
100
±.005
±125
Not applicable
Not applicable

  • Louis Donald, United Kingdom 05/09/2017

    5 of 5 Stars!
    Just what I need

  • Bruce Hunter, United Kingdom 28/02/2017

    5 of 5 Stars!
    seriously good service here guys, thank you once again made up with this

  • Ayden Everett, United Kingdom 12/11/2015

    5 of 5 Stars!
    Very good quality balls, they worked really good.. thanks again.

  • Walter Ogden, United kingdom 14/06/2015

    5 of 5 Stars!
    Accurate and as specified

  • Tony Conway, United Kingdom 04/06/2015

    4 of 5 Stars!
    Thank you for the quick delivery on these, just what I was after. Paid for a bigger pack due to the saving in price and can keep the rest as spares. Thanks again.

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7mm Diameter Grade 100 Hardened AISI 420 Stainless Steel Ball Bearings
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Brands

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
WN7 3XJ
United kingdom

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