B&R 8LS 3 Series, Руководство пользователя

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Technical data
32 8LS...-3 user's manual V2.50
2.9.3 Oil seal (ff) 8LSO / 8LSP
All 8LS three-phase synchronous motors are available with a form A oil seal per DIN 3760.
When equipped with an oil seal, the motors have IP65 protection per EN 60034-5.
Motor options (ff) - Overview (order code)
see "Motor options (ff) 8LSO / 8LSP" on page 30
Servicing
To maintain functionality of the oil seal, it must be lubricated regularly with oil. An oil seal that is not lubricated will
harden due to increased frictional heat and will eventually provide only dust protection.
Note:
Proper lubrication of the oil seal must be ensured throughout the entire service life of the motor.
For this reason, mounting a gearbox on motors with an oil seal is not permitted!
2.9.4 Shaft end (ff) 8LSO / 8LSP
All 8LS three-phase synchronous motors have shaft ends per DIN 748. The shaft end is available in several variants,
and availability can be determined in the corresponding table.
Motor options (ff) - Overview (order code)
see "Motor options (ff) 8LSO / 8LSP" on page 30
Variants
Smooth shaft end
A smooth shaft end is used for a force-fit shaft-hub connection and guarantees a back-
lash-free connection between the shaft and hub as well as a high degree of operating
smoothness. The end of the shaft has a threaded center hole.
Keyed shaft end
A keyed shaft end is used for a form-fit torque transfer with low demands on the shaft-hub
connection and for handling torque in a constant direction.
The keyways for 8LS three-phase synchronous motors conform to keyway form N1 per DIN
6885-1. Form A keyed shafts that conform to DIN 6885-1 are used. Balancing motors with
keyways is done using the shaft and fitment key convention per DIN ISO 8821.
The end of the shaft has a threaded center hole that can be used to mount machine actu-
ators with shaft end cover plates.
Caution!
The shaft key can become dislodged during heavy reverse operation. In extreme cases, this can cause
the shaft end to break!
Preferably use smooth shaft ends with clamping elements.