Download Operating Instructions - SEW

Delivery Scope and Unit Design
Gear unit structure
3.4.6
3
Basic structure of single-stage servo planetary gear units PSBF221, PSBF321 to PSBF521,
PSBF621 and PSBF821
[56]
[57]
[13 ]
[46]
[24]
[58]
[12]
[8]
[114]
[16 ]
[18]
[17]
[25]
[1]
57814AXX
Figure 8: Basic structure of servo planetary gear units PSBF221, PSBF321 to PSBF521, PSBF621 and PSBF821
[1]
Planet carrier for output
[16]
Planetary gear axle
[56]
O-ring
[ 8]
Oil seal
[17]
Planet wheel
[57]
Shaft nut
[18]
Needle roller
[58]
Eyebolt [3]
[24]
Housing
[114]
Sun wheel
[25]
Screw plug
[46]
Adhesive and sealing compound
[12]
Angular contact ball bearing
[12]
Tapered roller bearing2)
1)
bearing2)
[13]
Angular contact ball
[13]
Tapered roller bearing2)
1) Only for PSBF221
2) Only for PSBF321 to PSBF521, PSBF621 and PSBF821
Operating Instructions – Explosion-Proof PSF.. Planetary Servo Gear Units
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