Zero-Max L442C Operating instructions

Brand
Zero-Max
Model
L442C
Type
Operating instructions

This manual is also suitable for

Zero-Max L442C is a precision inline coupling designed to accommodate shaft misalignment and transmit torque in a variety of applications. Its compact design and high torque capacity make it suitable for use in tight spaces and demanding applications. The L442C is capable of handling speeds up to 1000 rpm and is ideal for connecting shafts or hubs that require precise alignment and minimal backlash. The coupling is easy to install and maintain, making it a cost-effective solution for a wide range of industrial applications.

Zero-Max L442C is a precision inline coupling designed to accommodate shaft misalignment and transmit torque in a variety of applications. Its compact design and high torque capacity make it suitable for use in tight spaces and demanding applications. The L442C is capable of handling speeds up to 1000 rpm and is ideal for connecting shafts or hubs that require precise alignment and minimal backlash. The coupling is easy to install and maintain, making it a cost-effective solution for a wide range of industrial applications.


• Hex socket set
• Shaft alignment tools
• Cleaning cloth
• Caliper
The Schmidt Inline Coupling will function properly
if these mounting, maintenance, and lubrication
instructions are followed. Failure to observe these
instructions may result in reduced coupling life.
Note: It is important that the following dimensions
and tolerances are maintained before and during
coupling operation.

Position shafts and hubs according to the following
values:
A: Hub faces to be parallel within:……… 0.025 inch
Speeds above 1000 rpm should be .015 inch or less.
Note: Minimizing angular misalignment will allow the
coupling bearings to achieve their maximum lifetime.
B: Distance between the hub faces:3.156+/-.032 inch
C: Maximum shaft misalignment not to exceed:0.125 inch
Note: The Schmidt Inline Coupling cannot
operate properly at higher misalignment than
listed. For speeds over 1000 rpm, maximum shaft
misalignment should not exceed 0.060 inch.
D: Mount coupling between hubs. After installation
of the coupling, check that the center disc is free
to move laterally a small amount (approximately
0.15"-.025"). Remove handling bolt after coupling
has been xed to the hubs.
E: Tighten hub bolts to the end of the coupling.
F: Tighten setscrews in hub.

The Schmidt Inline Coupling should be lubricated
after the rst 200 hours of operation, and again as
specied by the lubrication schedule below.
Note: Always make certain that the lubrication
ttings are clean before adding lubricant to prevent
the introduction of foreign matter into the bearings.
Use standard Alemite ush-type tting Z-737.
Recommended lubricant: Darina No. 2 (EP) oil
based grease.
Caution: Rotating equipment is potentially
dangerous and should be properly guarded.
It is the responsibility of the machine builder,
user, or operator to follow all applicable safety
codes and provide a suitable guard. Make
sure the machine is “locked out” and cannot
be accidentally started during installation or
maintenance of coupling.

L431C & L442C
Mounting and Lubrication Instructions For
Schmidt Inline Couplings
13200 Sixth Avenue North, Plymouth, MN 55441-5509
Phone 763.546.4300  Fax 763.546.8260   TOLL FREE 1.800.533.1731   www.zero-max.com Rev 1.0
RPM Under 500 500 to 1000 Over 1000
Lube Cycle Every 1000
Hours
Every 500
Hours
Every 200
Hours

13200 Sixth Avenue North, Plymouth, MN 55441-5509
Phone 763.546.4300  Fax 763.546.8260   TOLL FREE 1.800.533.1731   www.zero-max.com Rev 1.0
L431C L442C
Nylon spacer–thick S952600 8 8
Nylon washer–thin S952500 8 8
Retaining ring C132037 8 8
Needle bearing S500700 8 8
Link assembly(1) S700840 4 4
Short shaft S853500 8 8
Item Description Item Number
(1) Link assembly part number includes two bearings installed in each link
Quantity Required
Per Coupling
Coupling Model Repair Kit Part No
L431C & L442C S041750

Standard rebuild kits are available for standard Schmidt Inline Couplings. Rebuild kits consist of links with
needle bearings, spacers, thrust washers, and retaining rings.
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Zero-Max L442C Operating instructions

Brand
Zero-Max
Model
L442C
Type
Operating instructions
This manual is also suitable for

Zero-Max L442C is a precision inline coupling designed to accommodate shaft misalignment and transmit torque in a variety of applications. Its compact design and high torque capacity make it suitable for use in tight spaces and demanding applications. The L442C is capable of handling speeds up to 1000 rpm and is ideal for connecting shafts or hubs that require precise alignment and minimal backlash. The coupling is easy to install and maintain, making it a cost-effective solution for a wide range of industrial applications.

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