Lortone NS8 Datasheet
LORTONE, inc • 12130 Cyrus Way, Mukilteo, WA 98275 U.S.A
Phone: 425-493-1600 • www.lortone.com
01/12 Page 1
Copyright © 2010 Lortone, Inc
NS8 Heavy Duty Arbors
Instructions and Parts List
The NS8 is a heavy duty, cast aluminum shop arbor specically designed for wet
grinding and polishing operations. It can be bolted to any workbench and the motor
mounted from the rear or underneath. The NS8 Long Shaft has an extended shaft for
when more clearance is needed.
• Holds wheels up to 8” diameter
• Bench-top design
• Rubber mounted sealed ball bearings
• Cast aluminum body won’t crack or warp
• Easy maintenance
LORTONE NS8 Long Shaft - Item# 040-060
NS8 - Item# 040-090
LORTONE, inc • 12130 Cyrus Way, Mukilteo, WA 98275 U.S.A
Phone: 425-493-1600 • www.lortone.com
01/12 Page 2
Copyright © 2010 Lortone, Inc
Setup
Check to make sure you have received the following parts:
(1) NS8 Arbor with pre-installed drive belt.
(1) Accessory Package containing:
(4) Flanges
(2) Aluminum Spacers
(1) Operators Manual and Warranty card
Note: This unit does not come with a motor. It may be ordered separately.
If any parts are missing, please contact your dealer or the factory immediately.
Arbor & Motor Installation
Mount the Arbor to a solid work surface or bench using four 1/4” diameter bolts (length of bolts will depend
on the bench top). Note: This arbor is designed to run with a 1/3 HP, 1725 RPM motor.
Install drive pulley on motor. We suggest using a 2” x 1/2” pulley for most operations.
Secure motor to the bench or work surface allowing for belt length and adjustment.
Install belt and adjust motor to obtain correct belt alignment and tension. Do not overtighten the belt as this
can lead to excessive noise and premature bearing wear.
Operation & Maintenance
Mount wheels securely using appropriate anges. For narrow wheels on the NS8, use the aluminum spacer
between the retaining ring and the ange. Tighten shaft nuts securely.
To mount wheels on the NS8 Long Shaft, use shaft nuts on either side of the wheel anges.
Use a water drip system or pump to provide coolant to the wheels. A splash shield may be required.
When grinding stone using Silicon Carbide wheels, and arbor speed of 1725 RPM gives good results.
For polishing, reduce the arbor speed by using the larger pulley on the arbor. Proper polishing speed depends
upon the material but can best be accomplished at speeds from 850 - 1725 RPM as needed.
The Arbor should be cleaned periodically with a damp cloth and the belt checked for wear.
Replace damaged belt or bearing if required.
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IMPORTANT
Read the following instructions before
assembly or use.
Failure to follow instructions can result
in damage to the machine
or injury to the operator.
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Adjust belt tension for
1/2”-1” slack
Bolt Motor and arbor securely
to work surface!
Correct rotation of
Arbor
Use spacer for thin
wheels
LORTONE, inc • 12130 Cyrus Way, Mukilteo, WA 98275 U.S.A
Phone: 425-493-1600 • www.lortone.com
01/12 Page 3
Copyright © 2010 Lortone, Inc
PARTS LIST
Item # Description
040-030 Front Casting
040-031 Rear Casting
044-003 Arbor Shaft (NS8)
044-005 Arbor Shaft (NS8 Long Shaft)
101-023 3” x 3/4” Flange
105-008 1” Aluminum Spacer (not shown)
200-006 Ball Bearing w/ set screw
206-032 Retaining Ring
210-032 Drive Belt 4L280
211-092 3-Step Pulley
240-069 Bearing Isolator
481-026 Right Hand Arbor Nut, 3/4” x 16
481-046 Left Hand Arbor Nut, 3/4” x 16
040-030
040-031
240-069
240-069
481-046
481-026
101-023
101-023
206-023
206-023
200-006
200-006
211-092
210-032
044-003
044-005
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