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SINGLE DIAMETER CALIPER
Great for extended production runs or repeating jobs. Each caliper is custom made, lapped to exact size, and marked. Available from .187-20 (4.75mm-508mm).
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ADJUSTABLE CALIPER
Adjustable calipers can be set to a new size with a hex wrench. Each has a graduated scale for easy setting. Round (disc) carbide contacts are standard. 1-3 and 3-5 calipers are available with flat contacts especially for crankshaft grinding. Flat contacts are available for other caliper sizes. as a custom option.
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SPLINE CALIPER
Custom made and lapped for gaging diameters with interruptions such as splines, keyways and flats. Available from .375-8 (10-200mm)
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SINGLE DIAMETER CALIPER |
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SPLINE CALIPER |
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LARGE CALIPER |
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Customize your ARNOLD GAUGE System! |
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More Information... |
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Our standard LR ARNOLD Gage frame (11.75 long) is perfect for most grinding jobs.
Use this table to select the proper Gage frame for your application:
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TRUNNION STORAGE RACK |
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MODEL LRWF (for diameters and widths) |
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2. CHOOSE AN INDICATOR... |
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ARNOLD dial indicators include a special dovetail back for secure mounting to the gage frame. The following models are available:
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3. CHOOSE A CALIPER... |
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HUB STYLE |
Description |
When to use |
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HR-1 |
Most common Laterally fixed |
Most common |
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HR-1-RB |
Includes roller bearing |
Sensitive diameter gaging |
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HR-2 |
Includes floating ball bearing for lateral sensitivity |
WF and LRWF Gages |
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HR-3 |
Trunnion floating ball bearing for lateral sensitivity |
WF, LRWF, TR-1 |
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HR-4 |
Short Trunnion Laterally fixed |
TR-1 in limited space |
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HR-5 |
Long Trunnion Laterally fixed |
HR-3 and TR-1 |
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HR-7 |
Sliding Hub with extended lateral float |
CRANKSHAFT and CAMSHAFT grinding |
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TR-1 |
Trunnion Hook Rod |
HR-3, HR-4, HR-5 |
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For ALL of these hubs, we recommend a DG-4 Dog Assembly to support your ARNOLD GAUGE when retracted |
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ARNOLD GAUGE mountings assure sensitive gage support while gaging, and lift the gage out of the way while swapping workpieces.
Model JR mountings include hydraulic motion control for smooth, shock-free operation.
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All mountings attach to your grinder (wheel guard, headstock, tailstock) with a single 1/2 Bolt. Three set screws allow you to accurately align the gage to your workpiece. |
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1. CHOOSE A GAGE FRAME... |
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4. CHOOSE A GAGE HUB... |
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MOUNTING OPTIONS An ARNOLD GAUGE can be mounted in a variety of ways... |
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5. CHOOSE A MOUNTING ARM... |
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Mounted to Top of Wheel Cover (uses a custom bracket) |
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Mounted to Right Side of Wheel Cover |
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Mounted to Rear of Headstock |
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Mounted to Front of Headstock (uses a custom bracket) |
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TRUNNION STORAGE RACK
The model TRS Trunnion Storage Rack mounts near the operator and holds up to 4 grinding gages equipped with trunnion style hub assemblies (HR-3, HR-4, HR-5). The operator simply takes a gage and snaps it into place. This saves time when grinding parts with 2 or more diameters to gage. |
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The Arnold model LRWF provides a continuous reading of both width and diameter during the grinding cycle.
This flexible, modular system allows several different configurations: |
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ADJUSTABLE CALIPER |
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6. CHOOSE A MOUNTING |
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Size (inches) |
Size (mm) |
Notes |
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.1875-1.5 |
6-40 |
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1-3 |
25-75 |
Available with flat contacts for crankshaft grinding |
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3-5 |
75-125 |
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5-8 |
125-200 |
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8-12 |
200-300 |
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12+ Up to 24 |
305+ Up to 610mm |
Each has 1 (25mm) of range |
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LR (Standard) |
11.75 (298mm) |
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LR-0 |
10.75 (273mm) |
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LR-3 |
14.75 (375mm) |
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Frame # |
LENGTH |
Notes |
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LR (standard) |
11.75 (298mm) |
Most common |
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LR-0 |
10.75 (273mm) |
Use if your grinding wheel is 12 (305mm) or smaller |
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LR-3 |
14.75 (375mm) |
Use for large crankshaft grinding |
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Please contact us for other lengths |
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Indicator # |
Resolution |
Range |
Features |
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194028 |
.0005 |
.20 |
Rev Counter |
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194002 |
.0001 |
.025 |
Rev Counter |
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194003 |
.0001 |
.20 |
Rev Counter |
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193703 |
.00005 |
.015 |
Rev Counter |
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194702 |
0.01mm |
2.5mm |
Rev Counter |
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194701 |
0.002mm |
0.5mm |
Rev Counter |
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Digital Indicator available upon request |
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Arm Length |
Use if your caliper size is... |
Notes |
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8 |
Under 5 |
Most common |
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10 |
5-8 |
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12 |
8-12 |
Use if required by mounting distance |
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14 |
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Use if required by mounting distance |
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16 |
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Use if required by mounting distance |
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Offset mounting arms available |
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Mounting Style |
When to use |
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JR |
Most common |
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JR: Heavy Duty |
With a 14 or 16 mounting arm, or caliper larger than 12 |
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JR: Reverse |
When mounting on the left side of grinder |
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BB |
When using multiple gages in tight spaces |