Zero-Max Schmidt Inline Couplings L448C - Manual

Form S0436_01/21/08
MOTION CONTROL PRODUCTS
13200 Sixth Avenue North Minneapolis, MN 55441-5509 PHONE (763) 546-4300 FAX (763) 546-8260
TOLL FREE 1-800-533-1731 www.zero-max.com
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Mounting and Lubrication Instructions for Schmidt Inline Couplings
For Coupling Models: L436C & L448C
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.
Mounting Instructions
It is important that the following assembly
dimensions and tolerances are maintained
before and during coupling operation.
Lubrication Instructions
The Schmidt Inline Coupling should be
lubricated after the first 200 hours of
operation, and again as specified by the
lubrication schedule below.
RPM Under 500 to Over
500 1000 1000
Lube Every Every Every
Cycle 1000 500 200
Hours Hours Hours
Note: Always make certain that the lubrication fittings
are clean before adding lubricant to prevent the
introduction of foreign matter into the bearings. Use
standard Alemite flush-type fitting Z-737.
Recommended Lubricant: Darina No. 2 (EP) Oil based
grease
Position shafts and hubs according to the following values:
1. Hub faces to be parallel within:-------------------------------------------------------- Æ
Speeds above 1000 rpm should be .015 inch or less.
Minimizing angular misalignment will allow the coupling bearings to achieve their maximum lifetime.
2. Distance between the hub faces:----------------------------------------------------- Æ
3. Maximum shaft misalignment not to exceed:-------------------------------------- Æ
The Schmidt Inline Coupling cannot operate properly at higher misalignments than listed. For speeds over 1000 rpm,
maximum shaft displacement should not exceed 0.060”.
4. Mount coupling between hubs. After installation of the coupling, check that the center disc is free to move laterally a small
amount (approximately .015”-.025”). Remove handling bolt after coupling has been fixed to the hubs.
5. Tighten hub bolts to the end discs of the coupling.
6. Tighten setscrews in hub. If shock loads are expected, use two set screws per hub.
3.810 +/-.032 inch
0.188 inch
.025 inch