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Diamond-Grinding-Wheel-Dish-Type-5-dia-J-K-Smit-UK-Top-quality
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Details about  Diamond Grinding Wheel Dish Type 5" dia. J K Smit UK - Top quality

Diamond Grinding Wheel Dish Type 5" dia. J K Smit UK - Top quality

Seller information

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Visit Shop:
Ibex Hardware
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Item information

Condition:
New
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Price:
£34.95
 
 
 
 
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New condition
Postage:
£3.95 Standard Delivery | See details
 
Item location:
North Wales, United Kingdom
 
Posts to:
Worldwide
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Payments:
International postage and import charges paid to Pitney Bowes Inc. Learn More- opens in a new window or tab
Returns:
14 days refund, buyer pays return postage See details
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eBay item number:
231119817415
Seller assumes all responsibility for this listing.
Last updated on  15 Aug, 2014 09:11:40 BST  View all revisions
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Item specifics

Condition:
New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
Brand: J K Smit
Visit Shop:   Ibex Hardware

ID Ref                         71

     Disk Ref                 D500 R50 B77

     Disk Type              Diamond

     Shape                      Dish

     FEPA Shape          12A2

     Diameter                5

     Arbor size             0.62

     Abrasive Width   4.8

     Abrasive  Ht        1.5

     Grit Type               D

     Grit Size                500

     Bond Cat                 Dry Resin

     Bond Grade            R

     Grit Conc                50

  


 Weight  410g

Postage to Europe     £9.95  

  

EXTRACTS FROM INFORMATION FOR J K SMIT GRINDING WHEELS

TYPES OF ABRASIVE    J K SMIT TYPES ARE CODED AS FOLLOWS BY A LETTER OR LETTERS PRECEDING THE GRIT SIZE

 Grits for Resinoid Wheels

 'A' Grit:         Metal clad grit.  General purpose for wet and dry applications

'B' Grit:         Metal clad grit for grinding of mixed metal areas where steel/carbide ratio is high.  Wet applications

'DD' Grit:      Clad grit for carbide only.  Dry application but can be used wet

'CBN' Grit:    For wet and dry applications

'W' Grit:        Special CBN grit for JKS Resin wheels.  Wet and dry applications

 

Grits for Metal Wheels

 'D' Grit:         General purpose for wet grinding applications

'M' Grit:        For metal-bonded wheels used on glass and ceramics

'N' Grit:         CBN grit for metal bonds.  Wet applications in steel

 

WHEEL BONDS

 Resin bonds can be used wet or dry in combination with either diamond or CBN grits.  They give the best compromise for stock removal and finish when dry grinding but coolant will improve all characteristics.

Metal bonds are also used in combination with either diamond or CBN grits and are more durable and shock resistant than resin bonds, although generally less free cutting.  Copious and well directed coolant is vital to obviate bond loading, except for the M55 bond.

 BOND TYPE AND SELECTION

 Dry grinding resin bonds for diamond wheels

 L grade of B77   A very soft bond for use where freedom-of-cut must be an absolute maximum.  It will cut with minimum heat generation, but will not hold corners or resist grooving.  Shock resistance is low and the bond should not be used for unsupported sections

M grade of B77  A general purpose bond for use where freedom-of-cut must take precedence over wheel life

R grade of B77  A general purpose bond where wheel life is more important than freedom-of-cut.  This bond is very accommodating in processing and is, therefore, useful for 'difficult' wheel shapes.  Shock resistance and corner handling are good

U grade of B77  A bond of special category.  Provides a crisp grinding action with reasonable life.

 

Wet grinding resin bonds for diamond wheels

 L grade of B87  A general purpose bond which has proved its effectiveness over a number of years.  The shock resistance is excellent , but very alkaline coolants could damage the bond.

P grade of B87  The equivalent, for wet grinding of U-B77 above.  Used with grits below 107 (150/170 B.S.) in no more than 50 concentration.

S grade of B87  A really long life bond with remarkable grit retention and good shock resistance.  This bond requires an ample continuous and well directed coolant supply.  Where appreciable areas of steel are contracted, the use of 5%, or even 10%, of a soluble E.P. oil is recommended.

J grade of B83  (Super-Finishing Bond)   Generally recommended to be used wet and with grits finer than D46.

 Wet grinding metal bonds for diamond wheels

 N grade of M8 (M8N)   General purpose bond suitable for all wheel shapes and for offhand, cylindrical and surface grinding.

U grade of M8 (M8U)   Freer  cutting that 'N' grade.  Available in all shapes.

K grade of M8 (M8K)    Free-cutting grade for face-coated wheels

J grade of M8 (M8J)      Free-cutting grade for peripheral wheels

W grade of M7 (M7W)   Electrolytic grinding.  surface and cylindrical grinding where corner holding is important. Available in all shapes.

R grade of M6 (M6R)    For ceramic grinding.  Available in all shapes.

N grade of M5 (M5N)   For ILI chipbreaker wheels.  Glass grinding.

L grade of M5 (M5L)     For optical lens laps.

KP grade of M3 (M3KP)    For electrolytic grinding where mechanical action is minimal.

BB, BBZ                            For grinding high alumina and tungsten carbide.

 GRIT CONCENTRATIONS

 As a general rule, wheel performance , endurance, and the level of surface finish obtained on the part ground is enhanced by the higher CBN or diamond concentrations.

For roughing and for high rates of stock removal, the combination of course grit and high concentration is ideal.

Low concentrations with fine grits are best suited to super-finishing applications.

                                                 Concentrations                                                 Diamond/CBN per cubic centimetre

                                                                                                                                                of abrasive section

                                                            150                                                                                       6.6 carats

                                                           125                                                                                        5.5 carats

                                                         *100                                                                                        4.4 carats

                                                           *75                                                                                        3.3 carats

                                                           *50                                                                                        2.2 carats

Note:  1 carat = 0.2 metric gramme

 

 


Business seller information

VAT number: UK 456904034

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Item location: North Wales, United Kingdom
Postage to: Worldwide
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VAT price: 20.0% (included in the listed price).
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