Donahue Industries, Inc. | A full service international metal components manufacturer
  • Grinding Wheel Industry
    • Abrasive Wheel Inserts
    • Cup Wheel (Spider) Bushings
    • Disc Wheel Inserts
    • Reducing Adapter Bushings
    • Reusable Adapter Kits
    • Safety Backs
    • Throw-away Mounting Flanges
    • Threaded Hex Inserts
  • Wire Rope Industry
    • Fractional Wire Rope Gauges
    • Metric Wire Rope Gauges
    • How To Use A Wire Rope Gauge
  • Hardware Startups
  • Customize
  • About
  • Contact
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Grinding Wheel Safety Backs Manufacturer​
For Type 6 - Straight Cup Wheel and Type 11 - Flaring Cup Wheel

Donahue-Industries_safety-backs_grinding-wheel-safety-backs-manufacturer_straight-cup-flaring-cup-wheelbacks
Donahue-Industries_safety-backs_grinding-wheel-safety-backs-manufacturer_straight-cup-flaring-cup-wheelbacks-diagram
Part Number Description:
Inch (Metric)
Outside Diameter:
Inch (Metric)
Thread
23A
26AN
27A
29A
29R
6.000" (152.400mm) flaring
6.000" (152.400mm) straight
5.000" (127.000mm) flaring
4.000" (101.600mm) flaring
4.000" (101.600mm) flaring
5.242" (133.147mm)
6.000" (152.400mm)
4.242" (107.747mm)
3.407" (86.538mm)
3.688" (93.675mm)
5/8"-11 UNC-2B
5/8"-11 UNC-2B
5/8"-11 UNC-2B
5/8"-11 UNC-2B
5/8"-11 UNC-2B

See nut options.

Special High Speed

Part Number Description:
Inch (Metric)
Outside Diameter:
Inch (Metric)
Thread
23E14
27E16
29AT
6.000" (152.400mm) flaring
5.000" (127.000mm) flaring
4.000" (101.600mm) flaring
5.242" (133.147mm)
4.242" (107.747mm)
3.407" (86.538mm)
7/8"-14 UNF-2B
3/4 "-16 UNF-2B
5/8"-18 UNF-2B
Request A Quotation
​Grinding Wheel Industry
   Abrasive wheel inserts
   Cup wheel (spider) bushings
   Disc wheel inserts
   Reducing adapter bushings
   Reusable adapter kits
   Safety backs
   Throw-away mounting flanges
   Threaded hex inserts

Wire Rope Industry
   Fractional sheave gauges
   Metric sheave gauges
   How to use a sheave gauge
Customize
About
Contact
Donahue Industries



​
Donahue Industries, Inc. is a full service international metal stamping manufacturer in Massachusetts specializing in parts for the grinding wheel and wire rope industries. 

Donahue Industries, Inc.
5 Industrial Drive
Shrewsbury, MA  01545-5835

Phone: (001) 508-845-6501
Fax: (001) 508-842-7665
sales@donahueindustries.com