Timesaver Lapping Compound
What is lapping?
Lapping is a machining process in which two surfaces are rubbed together with an abrasive between them, by hand movement or using a machine.citation Wikepedia
PRECISION FINISH ON BEARING SURFACES
GUARANTEED NOT TO IMBED - WILL NOT CONTINUE TO CUT!
Please see Precision Finish Booklet (PDF)
Timesaver Lapping Compound does not contain emery, aluminum
oxide, silicon-carbide or similar charging abrasives.
They are unconditionally guaranteed not to imbed into any metal
surface.
Prepared in powder form, to be mixed with oil as used.
Timesaver first acts as an abrasive, then the particles diminish
to a polish, and finally to inert material.
Directions for use in each can.
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YELLOW LABEL GRADES
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RECOMMENDED FOR |
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GREEN LABEL GRADES
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RECOMMENDED FOR |
Available in:
Test Kit ( 8 assorted 3oz. Cans) TIM.TK
Test Kit ( 4 assorted 3 oz Cans Green) TIM.TKGREEN
Test Kit ( 4 assorted 3 oz Cans Yellow) TIM.TKYELLOW
1 lb. cans TIM.(grade)
5 lb. cans TIM.(grade)-5
25 lb. pail TIM.(grade)-25 ( not available with online ordering)
50 lb. pail TIM.(grade)-50
( not available with online ordering)
Product Data Sheet
Please see Precision Finish Booklet (PDF)
Abrasive Grain Sizes In Timesaver Lapping Compounds
Timesaver Lapping Compounds are formulated to first act as an
abrasive, then diminish to a polish and finally to inert material.
Other ingredients in the compound conglomerate the fines to prevent
imbedding in the metal being lapped.
All compounds have a range of particle sizes with most of the work being done by the largest particles.
The selection of the grade depends more upon the amount of
metal to be removed than the finish because the abrasive breaks
down to a finer and finer size and eventually to a polish material.
| Timesaver Grade # Yellow Label |
*Approximate Grain Size in Microns |
*Approximate Average Grit Number |
Use Guide |
| #40N Coarse | 212 | 80 | First Cut/Rough Lapping |
| # 60N Medium | 180 | 120 | General Lapping |
| #80N Fine | 125 | 220 | Finish Lapping/Polish |
| #100N Very Fine | 90 | 320 | Finish Lapping/Polish |
| Timesaver Grade # Green Label |
*Approximate Grain Size in Microns |
*Approximate Average Grit Number |
Use Guide |
| #55N Coarse | 600 | 40 | First Cut/Rough Lapping |
| #77N Medium | 250 | 80 | General Lapping |
| #111 Fine | 125 | 220 | Finish Lapping/Polish |
| #333N Very Fine | 90 | 320 | Finish Lapping/Polish |
*DISCLAIMER: This sheet is provided only as a guide for selecting
the correct Timesaver Lapping Compound Grade for your application,
it represents typical properties of the product described and
is not intended for use as a technical specification. Actual Grain
Size may vary. Newman Tools Inc. makes no representation or warranty
concerning the Products, expressed or implied, by this Product
Data Sheet.
TIMESAVER LAPPING COMPOUNDS
SHELF LIFE
Timesaver Lapping Compounds are not affected by temperature changes and keep indefinitely. Keep dry until use. At the time Timesaver Lapping Compounds are mixed with oil and/or grease for use per the instructions for use, they then assume any shelf life associated with the chosen carrier.
Directions for Using ...
Soft Metal Lapping Compound
for
LAPPING BABBITT, BRASS, BRONZE
and ALUMINUM
Mix TIMESAVER with oil as you use it and only the amount needed for the particular job to be done. Keep well mixed.
SPLIT BEARINGS - Mix TIMESAVER COMPOUND with light or medium oil to the consistency of a thin paste and apply to the bearing halves. Add a little oil to the surfaces; also apply oil to the shaft. Both up cap - not too tightly, just so shaft can be easily turned by hand; then proceed to lap. At intervals add sufficient oil to the surfaces to prevent them form becoming dry. Take up on bearings gradually as high spots are removed, applying fresh compound when necessary.
SLEEVE BEARINGS - Fit bearings snugly to shaft. Apply TIMESAVER mixed with oil to bearing and shaft. Insert shaft and lap with a twisting motion, adding oil frequently until proper clearance is obtained. Flush out with diesel or Stoddard Solvent.
HOT BEARINGS - Mix a small amount of TIMESAVER with oil. The mixture must be very thin. Apply freely to bearings and shaft through oil holes. Rotate the shaft. Add the thin mixture until bearing is free. Then flush out with diesel or Stoddard Solvent.
GEARS - Mix TIMESAVER COMPOUND with oil proportions of about one part TIMESAVER to three or four parts of oil (by volume). The use of heavy oil is advisable as this procedure prevents the mixture from being thrown from the gears and wasted. Apply mixture sparingly either by pouring or with a paint brush. When gears run quietly, flush out with diesel oil or Stoddard Solvent.
TIMESAVER COMPOUND will not imbed into any metal surface and will not continue to cut.
We also make HARD METAL LAPPING
COMPOUNDS
for lapping cast iron, steel, and hard bronze.
Hard Metal Lapping Compound
for
LAPPING CAST IRON, STEEL and BRONZE
Mix TIMESAVER with oil as you use it and only the amount needed for the particular job to be done. Keep well mixed.
GEAR UNITS - Mix TIMESAVER with heavy oil or grease in proportions of one part TIMESAVER to three parts of oil by volume. It is preferred to protect ball or roller bearings by the use of shields or by covering with grease. It is customary to leave the cover off of the gear case for convenient inspection and application of the lapping compound. Bearing races should be held in place by bolting down with blocks. Relatively heavy brake loads should be applied to insure fi
CAST IRON BEARINGS - mix our Hard Metal Compound with light engine or cutting oil to the consistency of a thin paste. Mixture should be thick enough to stick to the bearings surface. Just before placing the shaft in the bearing, add oil to surfaces in order to thin compound to proper lapping consistency. Bolt up cap - not too tightly, just so shaft can be turned by hand - and proceed to lap. At intervals add compound if necessary. When a full bearing surface has been
CAUTION - Do not use Hard Metal Compound (GREEN Labeled Can) on babbitt, brass, aluminum or bronze. For this work, use our soft metal compound (YELLOW label can). TIMESAVER can be used on any hard metal friction surfaces where accurate fits are required, such as valve seats, machine tool ways, tool room applications, etc.
TIMESAVER COMPOUNDS ABSOLUTELY DO NOT IMBED OR CHARGE INTO ANY METAL SURFACES. Therefore, do not attempt to make a lead, copper or other soft metal lap to lap hard metals, as is done with emery, ground glass, silicon carbide or other similar charging abrasives. The lapping plate should be at least as hard as the surface to be lapped and harder if possible. The softer of the two metals will get the most wear.
Booklet
Timesaver - Lapping compounds - Guaranteed not to imbed - Will not continue to cut!
Timesaver lapping compound does not contain emery, aluminum
oxide, silicon-carbide or similar charging abrasives. They are
unconditionally guaranteed not to imbed into any metal surface.
Prepared in powder form, to be mixed with oil as used. Timesaver
first acts as an abrasive, then the particles diminish to a polish,
and finally to inert material.
Read More...
 |
 Download
Precision Finish Booklet (Adobe PDF) 800K |
TIMESAVER LAPPING COMPOUNDS FAQ:
- What is the difference between the Green and Yellow Labels?
- Our Green label grades are designed for hard metals such as Steel, Cast Iron, Hard Bronze, and Stainless Steel.
Our Yellow label grades are designed for soft metals such as Babbitt, Brass Bronze, and Aluminum. - How long will it take to lap my part?
- This can vary greatly. Factors include the amount of material that needs to be removed, contact pressure between lapped parts, which grade you are using, etc. Experimenting with various grades and mixture ratios will determine the best grade for your application. Our test kits are a great way to evaluate which grade is best for your application.
- How much lapping compound do I need?
- It will depend on your application. Timesaver comes in a powder and is mixed with oil as used, typically 4 parts oil to 1 part timesaver. A 3 oz jar should be enough to lap the main bearings on a model T, while a 50 lb. pail may be required to lap a large bull gear in the mining industry.
- Can I lap my parts without disassembling them?
- Yes. Because Timesaver Lapping Compounds do not imbed and do not continue to cut, you can lap your components in place. Care must be taken to protect bearings or other components that are in your system that you do not want abrasives introduced to.
- Can I mix Timesaver with water instead of oil?
- No. Timesaver Lapping Compounds are designed to be mixed with oil or grease only.
- Do I need to flush out the lapping compound with solvent?
- It is recommended. However, simply flushing with fresh oil has proven effective. In any case, Timesaver Lapping Compounds will not continue to cut but you need to make sure that any metal that was removed is flushed out of the gear, bearing, bushing, etc.
- Do I need to clean my parts before changing grades, i.e. changing from 55N Coarse to 111N Fine?
- No. Because Timesaver Lapping Compounds are fast-cutting and then breakdown into an inert material, there is no need to clean your parts prior to changing grades.
Don’t see an answer to your question?
Please give us a call or send your question via e-mail and we will be happy to assist you.