Warner Electric L Series 310 - Manual (Page 3)

Warner Electric Europe • +33 (0)2 41 21 24 24 P-2072-WE • 2/13 3
The “L” limiter is a multi-disc unit used to limit the torque absorbed when starting or protect parts of machines
against intermittent overloads. lt can be mounted vertically, horizontally or in any other position.
Two models are available:
- For running in oil or in contaminated atmosphere : units fitted with steel disc rubbing against sintered
disc, reference : L - B.
- For running in dry conditions : units fitted with steel disc rubbing against lined steel disc, reference L - Gr with
reinforced disc.
1 DESCRIPTION:
The limiter includes:
1.1 - The driving part, consisting of:
• A hub 1 keyed to the driving shaft.
• Inner disc 2 , one or two thrust places 3 , the latter being integral with hub 1 by their involute toothing.
• Depending on the size of the unit : either a safety ring 4 or a thrust-cheek 5 bound to the hub 1 by means
of screws 6 .
• Compression springs 7 .
• An adjusting washer 8 .
• Adjusting and clamping screws 9 .
• Wear compensation screws 10 .
1.2 - The driven part includes:
• A spider 11 with either notches (Fig. 1) or inside toothing (Fig. 2)
• A outer disc 12 integral with spider 11 .
Note: instead of having the hub driving and the spider driven, as described above, it is possible
to have the reserve, if the conditions of the application require so. (hub drive, spider
driving).
2 OPERATION
The torque limiter is used to transmit a rotating movement while limiting the effort to pre-established value.
When this calibrated torque is exceeded, slipping occurs and the driving and driven parts do not rotate at the
same speed any more.
The springs 7 press the inner discs 2 and outer disc 12 against one another, the compressing effort being
adjusted by the adjusting and clamping screws 9 and the wear compensation screws 10 to obtain the chosen
slipping torque.
Fitting Adjustment
Maintenance
Leaf nº 587