Cut-off Wheels

CENTERLESS AND FEED WHEELS
CENTERLESS, CYLINDRICAL & CREEPFEED
SPEC check
Stationary Dressing Tool Recommendations for Centerless Wheels
SINGLE POINT INDEXABLE SINGLE POINT MULTI-POINT (GRIT)
GRINDING DIAMOND TOOL TOOL TOOL TOOL
WHEEL CARAT PRODUCT NO. PRODUCT NO. PRODUCT NO. PRODUCT NO.
DIAMETER WEIGHT 0° ANGLE 0° ANGLE 0° ANGLE SHAPE 15° ANGLE SHAPE
11" - 14" 1/2 BC5M7 BCUD5 BC65 3/8 Round BC63 1/4 x 1/2 Rect.
NS5M7 NSUD5 2R6K7 2A6E7
15" - 20" 3/4 BC7M7 N/A BC62 1/4 x 1/2 Rect. BC63 1/4 x 1/2 Rect.
NS7M7 NSUD7 2A6D7 2A6E7
21" + 1 BC10M7 N/A BC61 1/4 x 3/4 Rect. BC60 1/4 x 3/4 Rect.
NS10M7 NSUD10 1A6A7 1A6C7
Stationary Dressing Tool Recommendations for Feed Wheels
FEED TOOL TOOL SINGLE INDEXABLE
WHEEL CARAT SHANK POINT SINGLE POINT
DIAMETER WEIGHT DIAMETER DESIGNATION PRODUCT NO.
Up to 14" 1/2 3/8" SP5AM6
7/16" SP5AM7 NSUD5
Over 14" 3/4 3/8" SP7AM6
7/16" SP7AM7 NSUD7
Dressing Tips for Throughfeed Grinding
DRESS TRAVERSE RATE CALCULATION
TOOL TYPE FINISH LEAD VALUE/WHEEL REVOLUTION
Single Point Coarse .008" - .010"
Medium .005" - .007"
Fine .002" - .004"
Multi-Point Coarse .023" - .030"
Medium .013" - .022"
Fine .006" - .012"
TOOL TYPE
LEAD
Traversing Roll
10" - 20" per minute
FORMULA:
Wheel Speed (RPM) x Lead Value/Wheel Revolutions = Traverse Rate in Inches/Minute.
RPM = SFPM ÷ (Wheel Diameter x 0.262)
164
Proper Wheel Mounting
1. Thoroughly clean spindle and flange bearing area of all dirt and foreign material.
2. Inspect for worn, distorted or damaged areas on flanges and spindle.
3. If mounting a wide centerless wheel on a spindle (i.e., twin-grip), do not use grease or other petroleum lubricants. Use a silicone spray lubricant
on the spindle to ease mounting the wheel, if necessary.
4. Ensure mount up arrow is at the top of the wheel. In the case of butted sets, assemble so that the arrow is formed across the top of the
wheel face.
5. Ensure proper blotters are installed; one on each flange mating surface. Always use new blotters.
6. Install blotter flange and snug up the bolts only finger tight.
7. Using a torque wrench, tighten all bolts in an alternating pattern from side to side to 15 foot pounds.
8. Repeat the same tightening sequence, increasing the torque to 35 foot pounds.
a.) for wide wheels (18"-20"), torque the bolts at 45 to 50 foot pounds
b.) for narrower wheels (10"-12"), a torque of 35 foot pounds is sufficient
9. Retorque the flange bolts to specification after the first eight hours of operation.
Ask your distributor about our revolutionary new Norton Quantum ceramic
made-to-order Centerless wheels – a quantum leap in technology.
www.nortonabrasives.com