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Flexon® Depressed Center Grinding Wheels
Type 28 Spin-On 
Type 28 
Type 27 
Type 27 Spin-On Use on Angle Grinders 
For Grinding ONLY |
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GRINDING WHEELS IMPROPERLY USED ARE DANGEROUS. Always refer to A.N.S.I. B7-1, "Safety Requirements for the Use, Care and Protection of Abrasive Wheels."
Metal, Stainless
| ZA30T - Smooth Grind | |||||
|---|---|---|---|---|---|
| Specially designed and engineered for the pipeline industry. Premium zirconia grain provides superior life when cutting, notching and root-pass grinding in pipeline and pressure vessel fabrication. These .125” thick wheels are designed for peripheral grinding only –not for angle grinding. (See “Depressed Center Combination Wheels” for cutting and angle grinding operations.) | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A0712 | 4 1/2" | .125" | 7/8" | 13,300 | 10 |
| A0712H | 4 1/2" | .125" | 5/8"-11 | 13,300 | 10 |
| A4412H | 7" | .125" | 5/8"-11 | 8,600 | 10 |
| A7412H | 9" | .125" | 5/8"-11 | 6,800 | 10 |
| Type 27 - ZA24P - Fast Grind | |||||
|---|---|---|---|---|---|
| Fastest stock removal rate of any zirconia wheel. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A1224 | 4-1/2" | 1/4" | 7/8" | 13,300 | 10 |
| A1224H | 4-1/2" | 1/4" | 5/8"-11 | 13,300 | 10 |
| A2224 | 5" | 1/4" | 7/8" | 12,000 | 10 |
| A2224H | 5" | 1/4" | 5/8-11 | 12,000 | 10 |
| A5224 | 7" | 1/4" | 7/8" | 8,600 | 10 |
| A5224H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
| A8224 | 9" | 1/4" | 7/8" | 6,800 | 10 |
| A8224H | 9" | 1/4" | 5/8"-11 | 6,800 | 10 |
| Type 28 - ZA24S - Heavy Duty | |||||
|---|---|---|---|---|---|
| Maximum life coupled with fast material removal make the ZA24S an excellent spec for beveling and edge grinding. An ideal choice for stainless and other ferrous metals. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A1334 | 4-1/2" | 1/4" | 7/8" | 12,000 | 10 |
| A1334H | 4-1/2" | 1/4" | 5/8"-11 | 12,000 | 10 |
| A5404 | 7" | 1/4" | 7/8" | 8,600 | 10 |
| A5404H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
| A8404 | 9" | 1/4" | 7/8" | 6,800 | 10 |
| A8404H | 9" | 1/4" | 5/8"-11 | 6,800 | 10 |
Iron
| Type 27 - ZA16U - Foundry Snag | |||||
|---|---|---|---|---|---|
| Fast stock removal in rough foundry applications. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A5354 | 7" | 1/4" | 7/8" | 8,600 | 10 |
| A5354H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
| A8354 | 9" | 1/4" | 7/8" | 6,800 | 10 |
| A8354H | 9" | 1/4" | 5/8"-11 | 6,800 | 10 |
| Type 28 - ZA16U - Foundry Snag | |||||
|---|---|---|---|---|---|
| Fast stock removal in rough foundry applications. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A5254 | 7" | 1/4" | 7/8" | 8,600 | 10 |
| A5254H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
| A8254 | 9" | 1/4" | 7/8" | 6,800 | 10 |
| A8254H | 9" | 1/4" | 5/8"-11 | 6,800 | 10 |