Congratulations! Your decision to purchase a Gagemaker product above all others on the market
demonstrates your confidence in our quality and workmanship.
To ensure the high performance and operation of our product, we urge you to use the included reference
materials. They contain important information for proper installation, setup, and use of the equipment. In
addition, we recommend that you follow the care and maintenance tips in this manual to keep the
equipment working in top condition.
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If your questions are not addressed in our reference materials, contact your local representative
or a customer service representative at 713-472-7360 or info@g agemaker.com.
The BX-1000 and BXG-1000 gages measure face groove diameters and widths. These gages adjust to
cover all sizes of R, RX, and BX ring grooves. The standard BX-1000 gage measures groove diameters
from 2.6” – 13”. Optional rails extend the range of diameters from 13” – 36”. The BXG-1000 inspects
groove widths from .34” – 1.5”.
The BX-1000 can be used to measure straight or tapered groove diameters, shallow bores, and hole
locations. The gage ships standard with .188” diameter contact points. The BXG-1000 measures widths
of straight or tapered grooves and includes .072” diameter contact points.
The BX and BXG gages use precision contact points for accurate measurement of the ring groove
diameter and width at the critical sealing point of the face groove.
Before inspecting parts, the BX and BXG gages require presetting to a nominal predetermined
dimension. The Groove Inspection Tolerances and Setting Dimension tables in this manual determine
the gage’s setting dimensions and gauging tolerances. The BX-1000 gages can be preset using
micrometers, gage blocks, or the MIC TRAC MT-3000 measurement center.
To inspect parts, place the contact points in the groove of the part and the gage is positioned by
sweeping to obtain an indicator reading. Gage indicators show actual deviation from the preset master
dimension. Taking measurements in several different locations along the groove will provide an
average groove diameter or groove width. In addition, we recommend that the gage be zeroed
periodically during use to maintain accurate readings.
Take some time to become familiar with all the parts that make up the BX-1000 gages by
reviewing the labeled diagram below. The part names are important for understanding the
operating instructions.
BX-1000 Model Gage
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Component List
Item Description Model Qty Item Description Model Qty
Upper block assembly
1
with wear pad
2 Extension rod lock screw
3 Indicator set screw
Lower block assembly
4
with wear pad
5 Lock knob
6-32 X ⅜” Flat head wear
6
pad screws
BX-1000-1A
BX-1000-2A
BX-1000-3A
BX-1000-4A 1 10 Contact point T188 2
BX-1000-5A
BX-1000-6A 8
1 7
2 8 Contact point lock screw BX-1000-8A 2
1 9 Indicator 803 or 513SGA 1
4. Using a 5/64” hex wrench, loosen the
contact point set screw in the lower
block.
5. Place a 1/8” hex wrench down the access hole
in the top of the lower block.
6. Using a .188” gage block, turn the hex wrench
to adjust the set screw so the distance from the
wear pad to the bottom of the contact point is
.188”.
Wear Pad
Contact Point
7. Using the 5/64” hex wrench, tighten the contact
point in the lower block.
8. Using a 5/64” hex wrench, loosen the contact
point in the upper block.
9. Place a 1/8” hex wrench down the access hole
in the top of the upper block.
10. Using a .188” gage block, turn the hex wrench
to adjust the set screw so the distance from the
wear pad to the bottom of the contact point is
.188”.
Contact Point
11. Using the 5/64” hex wrench, tighten the contact
point in the upper block.
Zeroing the BX-1000 Gage Using the MIC TRAC (continued)
you are measuring in the MIC TRAC Setting
Dimensions table in this manual.
4. Turn the coarse adjust knob on the MT-3000 to
display a measurement that is close to the
desired setting dimension.
5. Secure the coarse adjust lock.
6. Turn the fine adjust knob until the CPU displays
the exact setting dimension.
7. Secure the fine adjust lock.
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8. Loosen the lower block locking knobs and slide
the lower block to a position that allows the BX1000 gage to set on the top surfaces of the
setting blocks.
9. Place the BX-1000 gage on the setting blocks,
positioning the contact points between the
setting blocks.
Zeroing the BX-1000 Gage Using the MIC TRAC (continued)
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14. Turn the indicator dial on the BX-1000 gage to
align the needle with zero.
15. Tighten the indicator clamp.
Note: Note the position of the small revolution
counter on the indicator before removing
the gage. Place a piece of masking tape on
the side of the gage and record the dial
setting of the small revolution counter to
eliminate incorrect indicator readings.
16. Set a frequency for verifying the zero setting of
all gages. As a minimum, the BX-1000 gage
should be zeroed on the MIC TRAC once
during each shift to ensure accurate readings.
Inspecting Parts with the BX-1000 Gage (continued)
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6. While maintaining pressure toward the lower
block and flange face, sweep the gage back
and forth, using the lower block as a pivot, to
locate the largest indicator reading.
Note: Be sure that the small revolution counter on
the indicator is pointing to the same number
as when the gage was zeroed. Refer to the
number previously recorded on the side of
7. Repeat the process in several locations around
8. Locate the groove diameter in the 6B & 6BX
9. Record the information on an inspection report.
10. Inspect the part with the BXG-1000 to ensure
11. Use the first part you inspected as a control
12. During the inspection process, periodically
the gage.
the groove to get an average groove diameter.
Groove Inspection Tolerances table in this
manual to determine the groove width
tolerance.
the proper groove width.
piece to verify repeatability. Mark the part at a
location where it was inspected and record the
deviation from zero.
place the BX-1000 on the control piece to verify
the gage’s accuracy.
1. Inspect the contact points to ensure that they
are tight.
2. Loosen the rear contact point lock knob,
located on the top of the gage.
3. Turn the contact point adjustment knob, located
on the rear of the gage, to adjust the point
location until the rear lock screw is aligned with
the access hole in the side of the gage body.
Note: Aligning the lock screw allows you to place
a hex wrench in the access hole and loosen
the lock screw.
Rear Lock Screw
4. Using the 5/64” hex wrench, loosen the front
and rear lock screws.
Zeroing the BXG-1000 Gage Using Gage Blocks (continued)
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7. Turn the indicator dial on the BXG-1000 gage
to align the needle with zero.
8. Tighten the indicator clamp.
Note: Note the position of the small revolution
counter on the indicator before removing
the gage. Place a piece of masking tape on
the side of the gage and record the dial
setting of the small revolution counter to
eliminate incorrect indicator readings.
9. Set a frequency for verifying the zero setting of
all gages. As a minimum, the BXG-1000 gage
should be zeroed on gage blocks once during
each shift to ensure accurate readings.
Zeroing the BXG-1000 Gage Using the MIC TRAC (continued)
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12. Place the BXG-1000 gage on the setting
blocks, positioning the contact points between
the setting blocks.
13. Adjust the rear contact point until both contact
points touch the inside of the MIC TRAC setting
blocks.
14. Continue to turn the contact point adjustment
knob until the indicator has approximately
0.010” to 0.020” of preload.
15. Tighten the rear contact point lock knob.
16. While maintaining pressure against the rear
contact point and setting block, sweep the gage
back and forth to locate the smallest indicator
reading.
Zeroing the BXG-1000 Gage Using the MIC TRAC (continued)
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17. Turn the indicator dial on the BXG-1000 gage
to align the needle with zero.
18. Tighten the indicator clamp.
Note: Note the position of the small revolution
counter on the indicator before removing
the gage. Place a piece of masking tape on
the side of the gage and record the dial
setting of the small revolution counter to
eliminate incorrect indicator readings.
19. Set a frequency for verifying the zero setting of
all gages. As a minimum, the BXG-1000 gage
should be zeroed on the MIC TRAC once
during each shift to ensure accurate readings.
• Keep all unprotected metal surfaces coated with light oil.
• Avoid dropping the gage or subjecting it to any vibration or impact.
• Keep the gage dry and away from any machine coolant spray.
• Do not force the movement of any of the mechanical parts. The mechanics are designed to move
freely.
• Keep the indicator face clean.
Warranty Information
Gagemaker warrants its products to be free from defects in material and workmanship under normal
operating conditions for 12 months from the date of shipment. This warranty is limited to repairing, or at
Gagemaker’s option, replacing any product which is proven to have been defective at the time it was
shipped and/or suffered damage during shipping, provided buyer has given Gagemaker written notice of
any such claimed defect within 15 days of receipt. Any defect ive product must be properly packed and
shipped to the Gagemaker factory in Pasadena, Texas USA. This warranty applies to all products when
used in a normal industrial environment. Any unauthorized tampering, misuse or neglect will make this
warranty null and void. Under no circumstances will GAGEMAKER or any affiliate have any liabilities for
loss or for any indirect or consequential damages. The foregoing warranties are in lieu of all other
warranties expressed or implied, including but not limited to, the implied warranties of merchantability
and fitness for a particular purpose.
Return products for repair or calibration to:
Gagemaker LP
712 East Southmore Ave.
Pasadena, TX 77502-110