Freewheel, roller type GF

Freewheel, roller type GF

Freewheel, roller type GF

Product catalog summary
Overview of GF Series Freewheels
The GF Series freewheels are designed to be self-centering. For sizes 8 to 20, centering is achieved through steel-on-steel contact, while sizes 25 to 130 utilize two 160 series bearings for centering. Torque is transmitted from the shaft to the inner race via a keyway and from the outer race to the housing using front pullers. Shaft tolerances must be h6 or j6, and housing tolerances must be H7 or G7. If front pullers are not used, the housing tolerance should be K6. Proper lubrication is required before use, with oil lubrication necessary for high-speed operations.
Technical Specifications
The document provides detailed specifications for various models of the GF series, including dimensions, weight, maximum rotational speeds for inner and outer races, rated torque, and resistance torque. For example, the GF 8 model has a shaft diameter of 8 mm, a weight of 0.1 kg, and a rated torque of 20 Nm. The specifications vary across models, with the largest model, GF 130, having a shaft diameter of 130 mm, a weight of 12.5 kg, and a rated torque of 35,000 Nm.
Notes and Recommendations
It is noted that the inner race is faster than the outer race in some configurations, and vice versa in others. The document also references the keyway standard DIN 6885 for mounting. A mounting example is provided for clarity.
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Catalog excerpts

Freewheel, roller type GF-1

Klemmrollenfreilauf GF Freewheel, roller type GF Die Freiläufe der GF-Serie sind selbstzentrierend. Für die Größen 8 bis 20 erfolgt die Selbstzentrierung Stahl auf Stahl, während von Größe 25 bis 130 die Zentrierung durch zwei Lager der Serie 160 sichergestellt wird. Die Drehmomente werden von der Welle auf den Innenring mittels Passfeder und vom Außenring auf das Gehäuse mittels Frontmitnehmer übertragen. Die Toleranz der Welle muss entweder h6 oder j6 sein; die Toleranz für das Gehäuse muss entweder H7 oder G7 sein. Wenn die Frontmitnehmer nicht benutzt werden, sollte sich die Gehäusetoleranz in K6 ausgeführt werden. Vor Inbetriebnahme muss der Freilauf mit Schmiermitteln gemäß den Anweisungen auf Seite FL 08-10 geschmiert werden. Ölschmierung ist erforderlich, wenn eine hohe Anzahl an Umdrehungen im Leerlauf erreicht wird. The GF Series freewheels are self centering. From size 8 to size 20, centring is steel on steel, whilst from size 25 to 130, centring is ensured by 2 160 series bearings. Torque forces are transmitted from the shaft to the inner race by means of a keyway and from the outer race to the seat by means of front pullers. Shaft tolerances must be either h6 or j6, seating tolerances must be H7 or G7. If no front pullers are used, the seating tolerance becomes K6. Before being put onto service, the freewheels must be lubricated with suitable lubricants following the instructions given on pages FL 08-10 . Oil lubrication is essential when a high number of rotations in neutral is reached. Ausgabe 2017  –  Druckfehler, Maß- und Konstruktionsänderungen vorbehalten. Edition 2017  –  We reserve the right to make dimensional and structural changes. We accept no liability for chang

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Freewheel, roller type GF-2

Montagebeispiel | Mounting example 1) Innenring ist schneller als AuGenring | Inner race is faster than outer race 2) AuGenring ist schneller als Innenring | Outer race is faster than inner race Anmerkung | Notes tmax = 2 x tn Passfedernut DIN 6885 Seite 1 | Keyway DIN 6885 page 1 Freilauf Serie | Freewheel series Innen 0 (Welle) | Inner 0 (shaft) FL 19 Ausgabe 2017 - Druckfehler, Ma&- und Konstruktionsanderungen vorbehalten. Edition 2017 - We reserve the right to make dimensional and structural changes. We accept no liability for changes or printing errors..

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