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VHT MODULAR SERIES AND MANDREL HONING STONES

VHT MODULAR SERIES AND MANDREL HONING STONES
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VHT MODULAR SERIES AND MANDREL HONING STONES

Product catalog summary
Overview: The document provides comprehensive information on the VHT Modular Series and Mandrel Honing Stones, focusing on replacement abrasives and oils compatible with major honing equipment brands. It includes specifications, recommended abrasive selections, and honing solutions.
Specifications: Various abrasive types, hardness levels, and grit sizes for OTW and Sunnen brands are outlined. Conversion codes for stone codes between the two brands are provided to ensure compatibility and ease of selection.
Recommended Abrasive Selection: Guidance is offered on selecting abrasives based on material type and desired finish. Recommendations are categorized for fast stock removal and fine finishing, with approximate finish roughness (Ra) values in both inch and metric units.
Series and Bore Sizes: Different series (SK, SL, SP) with corresponding bore size ranges for OTW and Sunnen are listed, facilitating the selection of appropriate tools for specific applications.
Honing Solutions: The importance of using the right honing oil for precision and efficiency is emphasized. Various OTW honing fluids, including OTW-8915, OTW-8920, and OTW-AF-5, are described, highlighting their availability in different quantities.
Honing Machines: Details on horizontal and vertical honing machines are provided, specifying bore diameter ranges and duty levels, from light to heavy production.
Tooling Products: Complete tooling assemblies, VHT expandable tooling systems, and various tooling components are described, emphasizing their versatility and minimal setup time.
Troubleshooting: Common honing problems, their possible causes, and solutions are detailed, such as tapered bores and waviness in bores.
Troubleshooting Honing Issues:
  • Bowed Bore: Caused by improper tool length, stroke, or stone. Solutions include using a tool that accommodates a stone length of 1.5 times the bore length, shortening the stroke, and using a softer stone.
  • Bellmouth Bore: For bores greater than 2/3 stone length, issues arise from an untrue mandrel, short or unbalanced parts, or improper stone. Solutions involve truing stones and guides, shortening stroke length, and using a softer stone. For bores less than 2/3 stone length, similar causes and solutions apply, with additional adjustments to stone and guide lengths.
  • Out-of-Round Bore: Caused by undersized honing tools, untrue mandrels, or workpiece deformation. Solutions include changing the honing tool, truing stones and guides, decreasing cutting pressure, and using a softer stone.
  • Stone Not Cutting: Due to stone glazing or loading. Solutions involve dressing the stone, increasing cutting pressure and stroking speed, and checking coolant.
  • Slow Stock Removal: Caused by improper spindle speed or stone feed. Solutions include increasing spindle speed and cutting pressure, using softer or coarser stones, and checking coolant.
  • Poor Stone Life: Due to excessive stone feed or inadequate spindle speed. Solutions involve decreasing cutting pressure, increasing spindle speed, and using harder stones.
  • Rough Finish: Caused by improper feed, untrue mandrels, or improper stone choice. Solutions include decreasing cutting pressure, truing stones and guides, using finer stones, and checking coolant.
  • Scratches in Bore: Result from improper feed or stone choice. Solutions involve decreasing cutting pressure, using finer and softer stones, and checking coolant.
Coolant Issues: Contaminated coolant is a common cause of honing problems. It can be contaminated with water, hydraulic oil, or tramp oil. Regular checks and maintenance are recommended.
Replacement Abrasives: Ohio Tool Works offers standard and custom replacement abrasives compatible with major manufacturers like Sunnen, General Hone, and others. Their expertise spans over 100 years in the honing industry.
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Catalog excerpts

VHT MODULAR SERIES AND MANDREL HONING STONES-1

VHT MODULAR SERIES AND MANDREL HONING STONES Replacement Abrasives and Oils for All Major Brands of Honing Equipment

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VHT MODULAR SERIES AND MANDREL HONING STONES-2

11% more usable abrasive & sulfur filled Sunnen Stone Code: H70A45 Abrasive Grit Size * “OH - Series” Abrasives OTW Sunnen Abrasive Hardness Abrasive Grit Size* * Standard grit sizes above. Others are available Abrasive Type Recommended Abrasive Selection by Material Type Fast Stock Removal Fine Finishing in Drilled, Bored, or Ground Bores Typically in Previously Honed Bores Replacement Abrasives Catalog | 2

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VHT MODULAR SERIES AND MANDREL HONING STONES-3

Up to 50% more usable abrasive Sunnen Stone Code: H70NM55 * OTW Stone Code: SH703-B 76-M Y Abrasive Type Abrasive Grit Size Hardness Abrasive Hardness Standard Hard Abrasive Grit Size* * Standard grit sizes above. Others are available Abrasive Type Recommended Abrasive Selection by Material Type Fast Stock Removal Fine Finishing in Drilled, Bored, or Ground BoresTypically in Previously Honed Bores 3 | Replacement Abrasives Catalog

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VHT MODULAR SERIES AND MANDREL HONING STONES-4

Bore Size- Inch (mm Metal Bond Mandrel Abrasives Bore Size- Inch (mm Bore Size- Inch (mm Recommended Abrasive Selection by Material Type Fast Stock Removal in Drilled, Bored, or Ground Bores Fine Finishing Typically in Previously Honed Bores (419)281-3700 Replacement Abrasives Catalog | 4

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VHT MODULAR SERIES AND MANDREL HONING STONES-5

OTW Stone Code: SK12-B-76 M Abrasive Type V Abrasive Grit Size Abrasive Hardness OTW Sunnen Abrasive Grit Size Diamond D DM Grit Size OTW Sunnen Stone Inserted Super Mandrels These mandrels are for applications where a long lasting mandrel is desired. The advantages of using these super mandrels compared to standard mandrels: 1. Consist size, geometry, and finish of the workpiece. 2. Reduced setup time due to the fact of the mandrels long life compared to standard mandrels. For Special Abrasives Needs or Application Assistance Contact Us at (419)281-3700 or [email protected] 5 | Replacement...

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VHT MODULAR SERIES AND MANDREL HONING STONES-6

Abrasive Grit Size Hardness Abrasive Hardness “Portable” Abrasives Abrasive Grit Size* * Standard grit sizes above. Others are available Abrasive Type Silicon Carbide Aluminum Oxide OTW J A Series (Diameter Range) (419)281-3700 Replacement Abrasives Catalog | 6

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VHT MODULAR SERIES AND MANDREL HONING STONES-7

Sunnen Stone Code: W47NM55 OTW Stone Code: OH-W470 - B 76 M ^_ I ttt, V ^ Series Abrasive Type Abrasive Grit Size Hardness Abrasive Hardness Standard Hard Abrasive Grit Size* * Standard grit sizes above. Others are available Abrasive Type Series (Diameter Range) For Special Abrasives Needs or Application Assistance Contact Us at (419)281-3700 or [email protected] 7 | Replacement Abrasives Catalog

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VHT MODULAR SERIES AND MANDREL HONING STONES-8

Selection Guide Conventional Vitrified in Drilled, Bored or Ground Bores 2.5" - 2.7" Fine Finishing Typically in Previously Honed Bores 2.5" - 2.7" Metalbond Super-abrasives “Portable” Selection Guide Fast stock Removal Fast stock Removal in Drilled, Bored or Ground Bores 2.5" - 2.7" Approx. Finish (Ra) Inch Fine Finishing Typically in Previously Honed Bores 2.5" - 2.7" Approx. Finish (Ra) Inch Replacement Abrasives Catalog |

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VHT MODULAR SERIES AND MANDREL HONING STONES-9

AccessoriesRemote Feed Adjusting Head Item Description Part Number 1 THREADED FEED CLUTCH ASSEMBLY 16709 2 FLANGED FEED CLUTCH ASSEMBLY 16682 3 HAND-WHEEL FEED ASSEMBLY 16680 4 UNIVERSAL JOINT ASSEMBLY 16714 5 YOKE CONNECTION ADAPTER 16716 9 | Replacement Abrasives Catalog

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VHT MODULAR SERIES AND MANDREL HONING STONES-10

VHT-500 Hone Head Module includes: Hone Body External Spline Eccentric Drive Shank, Drive Assembly Rack Assembly - Stone Rack Assembly - Stone Rack Assembly - Stone 3.50-7.00" VHT-700 Hone Head Module (13901) VHT-700 Hone Head Module includes: Body (Assembly)* Shank, Drive Assembly Rack Assembly - Stone Rack Assembly - Guide Rack Assembly - Guide Rack Assembly - Stone Rack Assembly - Stone Rack Assembly - Guide " VHT-800 Hone Head Expansion Module (14020) i°-9.°° VHT-800 Hone Head Expansion Module includes: Cage Assembly Rack Assembly - Stone Rack Assembly - Guide Also Required For Use (sold...

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VHT MODULAR SERIES AND MANDREL HONING STONES-11

System Overview 11.0-15.00" VHT-830 Hone Head Expansion Module (14063) VHT-830 Hone Head Expansion Module includes: 14107 Cage Assembly 14815 Rack Assembly - Stone 14816 Rack Assembly - Guide Also Required For Use (sold separately): 14904 Body (Assembly)* 13938 Shank, Drive Assembly** 14.0-18.00" VHT-840 Hone Head Expansion Module (13942) VHT-840 Hone Head Expansion Module includes: 13934 Cage Assembly 14817 Rack Assembly - Stone 14818 Rack Assembly - Guide Also Required For Use (sold separately): 14904 Body (Assembly)* 13938 Shank, Drive Assembly** 18.0-22.0" VHT-850 Hone Head Expansion Module...

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VHT MODULAR SERIES AND MANDREL HONING STONES-12

Using the right honing oil is an essential part of bore sizing precision, finish and efficiency. OTW makes it easy with our specialty honing lubricants, which are specifically formulated and tested to cool, flush, and optimize your honing operation. OTW's proprietary cutting fluids help customers optimize their material removal rates, extend their abrasive and tooling life, and obtain superior bore finishes. OTW-8915 HONING OIL: OTW-8915 Honing Fluid is a premixed honing oil and is an excellent choice for most honing applications. Available in 5-gallon pails, 55-gallon drums and 275 gallon totes....

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VHT MODULAR SERIES AND MANDREL HONING STONES-13

Honing Machines Model Bore Diameter Range (I.D.) Horizontal Honing Machines High Volume Production Bore Diameter Range (I.D.) Model OTW-VersaHone Vertical OTW-9000 Vertical Honing Machines OTW’s ever-growing lineup of horizontal and vertical honing machines is a result of the Company’s unmatched efforts to continuously develop and introduce breakthrough honing technology Offerings Complete Tooling Assemblies (Standard & Custom) VHT Expandable Tooling System Honing Tooling Products Tooling Components Description Light Duty – Ultra Heavy Duty Standard & Expandable Mandrels Single Stage – Multi-Stone...

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VHT MODULAR SERIES AND MANDREL HONING STONES-14

Possible Cause(s] Tapered Bore 1. Mandrel not trued 2. Improper stroke length 3. Misalignment of fixture to spindle 1. True stones/mandrel 2. Extend stroke length on tight end(s) 3. Verify alignment 4. Reverse workpiece on mandrel Tapered Blind Bore 1. Improper stone length 2. Inadequate coolant flow 3. Insufficient relief ate blind end Honing Trouble Shooting Barrel Bore 1. Mandel not trued 2. Improper stone length 3. Improper stone Bowed Bore TZZZZZZZZIZZZ^ n7777777777Tzr.i Bellmouth Bore (> 2/3 stone length) Bellmouth Bore (< 2/3 stone length] (419)281-3700 1. Improper stone/tool length 1....

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.