UNMOUNTED FLAP WHEELS | AA ABRASIVES

Unmounted Flap Wheels are used for cleaning, blending, deburring and finishing on metal surfaces. AA Abrasives Unmounted Flap Wheels are made of quality Aluminum Oxide grain to provide consistent finishes.  Unmounted Flap Wheels in diameters from 3-1/2" to 12" are available on our website. Safe maximum RPM ratings are indicated on each flap wheel. 

Unmounted Flap Wheels

Choose your abrasive flap wheel in the appropriate grit to achieve the desired finish:

Unmounted Flap Wheels

Size	Max RPM	40 Grit	50 Grit	60 Grit	80 Grit	100 Grit	120 Grit	150 Grit	180 Grit	240 Grit
6 x 1 x 1	6,000	11154	11158	11162	11166	11170	11174	11176	11178	11182
6 x 1½ x 1	6,000	11190	11194	11198	11202	11206	11210		11214	11218
6 x 2 x 1	6,000	11226	11230	11234	11238		11242		11246	11250

Click on the part number above for product details and ordering information.
Other sizes and specs available - Visit our website for all Unmounted Flap Wheels
Also available Mounted Flap Wheels with 1/4" Shank and Mounted Flap Wheels with 1/4"-20 stem
Get a Quote for special make or bulk orders.

These Unmounted Flap Wheels are designed for use on slow speed straight grinders like the 4500 RPM - .7 hp Dynabrade 13207 Dynastraight or bench grinders.

The Dynabrade 13508 Dynastraight 4500 RPM - 1 hp has more horsepower, use with a slower RPM for a finer finish.

AA Abrasives is an Authorized Dynabrade Distributor.

Visit us at 

www.aaabrasives.com 

Or Call to Speak to an Industrial Abrasives Specialist 

1-800-888-1802

HOW TO READ A GRINDING WHEEL SPEC

The Measurement of a Grinding Wheel

Diameter of grinding wheel x Thickness of grinding wheel x size of arbor hole -

We will reference the AA Abrasives #60397 - 12x2x1-1/4 Pedestal Grinding Wheel T-1 Vitrified A36 - from our Vitrified Bonded Grinding Wheel Series.

12=Diameter x 2=Thickness x 1-1/4=Arbor Hole

*Note that the arbor hole can be bushed down meaning a bushing may be inserted in the arbor hole to reduce the size of the arbor hole.

Pedestal Grinding Wheel

What does the rest of the description mean after the size?

T-1 means the grinding wheel is flat. This is also referred to as a Type 1 Grinding Wheel or a straight toolroom wheel;

Vitrified is the bonding of grinding wheel;

A36 - A means it is an aluminum oxide grinding wheel and the 36 means the grinding wheel is composed of a medium grain size also known as grit.  See the grain size chart below.

A/O  also means aluminum oxide;

RPM is the Revolutions Per Minute or Maximum Operating Speed  - not all specifications will show this. The tool, the grinding wheel and application must be in agreement to ensure safe operation.

Grinding Wheel Specification Sheet

Grain Size/Grit:

Coarse: 8, 10, 12, 14, 18, 20, 24

Medium: 30, 36, 46, 54, 60

Fine: 80, 100, 120, 150, 180

Grade:

Soft: B, D, E, F, G, H

Med:  I, J, K, L, M, N

Hard: O, P, Q, R, S, T

Bond:

V- Vitrified

B- Resin

B2: Resin Bonded

BF: Reinforced Resin

Grain Types:

A- Dark Aluminum Oxide – Most common grain. Used for Heavy Duty General Purpose

AS3- 20% Ceramic Aluminum Oxide, 30% Pink Grain, 50% White Grain. Excellent for form and corner holding.

AZ- Blue Aluminum Oxide- Grinds fast with excellent cool cutting action and requires minimal dressing.

RA- Red Aluminum Oxide (Ruby)- Harder grain and sharper than PA & AZ wheels good for steels with high level chromium

PA- Pink Aluminum Oxide- General Purpose Grain that is tough but friable. Tool Room sharpening applications.

WA- White Aluminum Oxide- Highly friable grain for fast cool cutting. Good for light grinding on all steels particularly on tool and die steels.

GC- Green Silicon Carbide- very friable use for carbide grinding applications.

AA Abrasives carries its own line of Grinding Wheels.  We are also an authorized distributor of Norton Grinding Wheels. 

Visit our webstore to view our full line of abrasives and industrial power tools.

aaabrasives.com

Our webstore is open 24/7.

We are available by phone M-F 8:30 - 5 EST

1-800-888-1802

WALTER LINEMATE III FINISHING KIT available at AA ABRASIVES

AA Abrasives Inc., a distributor of Walter Surface Technologies product line, presents the Walter Line Mate Kit 30-A-269 in stock now. The Line-Mate III drum sander kit has set a new standard in industrial line finishing. The Walter Line-Mate III combines power with endurance, operator comfort and an unsurpassed level of smoothness to get you to your desired finish. With the Line-Mate Kit 30-A 269 from Walter Surface Technologies, skilled operators will be able to match any line finish with minimum effort.

Walter Line Mate Kit 30-A-269

The Walter Line Mate III Kit Includes:

• 1 LineMate III drum sander

• 1 carrying case

• 1 pneumatic drum-5 3/8" x 3 1/2"

• 6 cloth drum belts-2 of each grit 60, 80,120

• 2 BLENDEX drum belts-coarse and medium

• 1 two-in-one drum-4 1/2 x 4

• 1 BLENDEX drum-4 1/2 x 4 medium

There are three types of drums included in the Walter Line-Mate III Kit, a pneumatic drum, a Blendex™ Drum and a Two-in-One drum.

The Walter 07-F-051 pneumatic drum which is 5-3/8" in width and 3-1/2” in diameter and comes standard in the Line-Mate III kit. The inflatable rubber drum air cools your abrasives increasing sandpaper life by reducing heat build up. In addition, it allows more flexibility  by conforming to both convex and concave surfaces. The pneumatic drum will hold assorted sandpaper belts and surface conditioning sleeves and abrasive belts. Abrasive sandpaper belts and Blendex belt sleeves are available in various grits or grades. The Blendex belts are comparable to the Norton Bear-Tex® Non-Woven Surface Finishing Belts or the  3M™Scotch-Brite™ Surface Conditioning Abrasive Belts.

The second type of drum is a Walter Blendex 07-M-443 Medium Drum. This is a medium grit drum. The Blendex drum is available separately in an assortment of grits and sizes. The Blendex drum can be used to polish, burnish, deburr, clean and brighten stainless steel, aluminum, brass, copper and other alloys. 

The third drum included with the Walter Line-Mate III Kit is the Two-in-One drum.  This drum combines two finishing processes into one. The coated abrasive cloth cuts aggressively while the interleaved Blendex flaps create a satin line finish. Walter Two-in-One drum in the 4" diameter  is included in the kit.

The Walter Line-Mate III Kit 30-A 269 includes 6 cloth drum belts and 2 Blendex drum belts. Cloth Drum Belts help establish line finishes, level off welds and remove scratches, paint, scale and rust. These abrasive belts are designed to last longer by implementing a tape butt joint which assists in both higher removal rate and longer abrasive belt life.

Included in the Walter Line-Mate III Kit 30-A 269:

• Two belts of Walter Abrasives 07-F-506 5-3/8” 60 Grit TopCut Drum Belt
• Two belts of Walter Abrasives 07-F-508 5-3/8” #80 Grit TopCut Drum Belt
• Two belts of Walter Abrasives 07-F-511 5-3/8" #120 Grit TopCut Drum Belt

Walter Blendex Drum Belts - these abrasive belts are excellent for creating a decorative finish. The Blendex Drum belts will clean and condition large metal surfaces. Walter Blendex Drum Belts are made of non-woven material so they can simultaneously polish, burnish, deburr, and blend giving a uniform and consistent finish over the life of the drum belts. Blendex drum belts are capable of providing a wide shadow free finish. These belts are comparable to the Norton Bear-Tex® Non-Woven Surface Finishing Belts or the  3M™Scotch-Brite™ Surface Conditioning Abrasive Belts.

One medium Blendex belt and one coarse Blendex belt is included in the LineMate Kit.

Walter Blendex Linear Finishing  Abrasive Drum Belt 07-H-503 Medium is used in conditioning and removing surface imperfections.

Walter Blendex Linear Finishing  Abrasive Drum Belt 07-H-502 Coarse

is used for tougher cleaning or removal of rusting or scratches.

The Walter Line-Mate surface finishing system is a most resourceful machine for all applications where a linear pattern is required. Whether you need to grind, sand, clean, buff or polish any metal surface, this system offers the most complete range of products to match any line finish required by your specifications. You can view the full line of Walter Abrasives products on our website.

Our AA Abrasives web store is open 24/7. 

Our technical specialist are available by phone 

M-F 8:30-4:30 EST

1-800-888-1802

GRINDING WHEEL GUIDE –

FEATURING THE 4 1/2 x 1/2 x 7/8 GRINDING WHEEL – Type 27 – A24R

AA Abrasives 40100 – Grinding Wheel – T-27 - A24R

4 1/2x1/4x7/8, Grinding Wheel, T-27, Resin Bond, A24R, Metal

• Our most popular wheel

• For general purpose grinding

• Longer life for fewer wheel changes

AA Abrasives – 40100 – Grinding Wheel

A24R grain is designed for use on tougher metals where consistent stock removal and wheel life is important. Grinding wheels made with this grain have a longer life than other grinding wheels resulting in fewer wheel changes.

What does it mean? A24R: A=Aluminum Oxide, 24=Grit (Coarse), R=Medium Bond. See the Grinding Wheel Guide below.

Portable grinders with Type 27 depressed center wheels are a favorite combination among the power tools users for metal fabricating.  AA Abrasives – 40100 – Grinding Wheel – T-27 - A24R is recommended for structural steel metal and welds and most other ferrous metals on grinders such as Dynabrade 50303 or Metabo WE14-125VS.

Dynabrade 50303 Depressed Center Wheel Air Powered Grinder can be used for fast stock and weld removal-rust and scale removal and heavy duty deburring with a 4 ½” Type 27 depressed center wheel like the AA Abrasives 40100.

Metabo WE14-125VS Electronic Variable Speed Small Angle Grinder is an alternate grinder that can be used with a 4 ½” Type 27 depressed center wheel like the AA Abrasives 40100. The advantage to using a variable speed grinder is that when you switch from a grinding application to a surface finishing application you can lower the RPMs according to the product specifications. If you do not require a variable speed grinder, check out the Metabo W8-115 4 1/2" Angle Grinder.

GRINDING WHEEL GUIDE

The First series of letters indicates Grain Type; A=Aluminum Oxide (Used in Metal Applications) C=Silicon Carbide (Used for Masonry Applications) ZA= Alumina Zirconium used for (Stainless Steel and Ferrous Metal Applications) TA=Ceramic Treated Aluminum Oxide (Used for Metal Applications)

The Second series of letters indicates Grain Size or Grit; 8-24=Coarse, 30-60=Medium, 70-180=Fine and 220-Up=Hard. The Third series of letters indicates Bond Hardness; A-N=Soft, O-S=Medium and T-Z=Hard.

Wheel Types; Type 1=Flat Wheel for Cutting, Type 27=Depressed Center Wheel for Grinding and Cutting Applications, Type 28=Hat or Saucer Shaped for Grinding and Type 29=constructed with an upward angle built into the grinding section to provide full face contact for light stock removal and blending operations.
Type 28 and Type 29 wheels may only be used on the face and never on the periphery for cutting-off.

Note: Harder Wheels have a longer life where a softer wheel will cut faster.

Fine Grain=Long Life=Slower Cutting and Grinding.

Coarse Grain=Short Life=Fast Cutting or Grinding.