In an automated packaging machine, every millimetre of positioning error shows up as a misaligned carton, a torn film or a rejected pack. Much of that accuracy is decided not by the servo but by the one way clutch bearing that converts continuous motion into precise indexing steps. Choosing and fitting the right one way clutch bearing directly affects how tightly a machine can hold its position. This guide explains how an indexing clutch such as the SUMA GFK25 raises repeatability.
Indexing error is cumulative in packaging. A fraction of a degree lost at each step becomes a visible offset after hundreds of cycles, forcing the line to slow down or reject product. Operators often blame the control system when the real cause is compliance in the drive's one way clutch.
An indexing clutch transmits motion in one direction and freewheels in the other, allowing a continuously rotating input to drive a stepped output. The GFK series can be used as an overrunning, backstop or indexing clutch, and the GFK25 is rated at 65 N·m with a maximum inner-race speed of 5300 r/min. Selecting a size whose rated torque comfortably exceeds the indexing load keeps engagement crisp and repeatable, while using the specified fits and a rigid housing minimises wind-up. Because the design carries its own bearing (a 5905 series), the clutch holds the driven shaft accurately with no extra clearance.
Indexing clutches drive the film-feed, carton-transfer and labelling stations that define packaging precision. In each station, firm and repeatable lock-up is what keeps the print, seal and cut in register cycle after cycle. Because the one way clutch bearing carries the driven shaft on its own bearing, there is no separate clearance to introduce error, and a well-chosen one way clutch bearing turns a variable input into a crisp, repeatable step that the rest of the machine can rely on.
| Parameter | GFK25 value |
|---|---|
| Nominal torque (TKN) | 65 N·m |
| Inner-race overrunning speed | 5300 r/min |
| Outer-race overrunning speed | 3800 r/min |
| Bearing series | 5905 |
| Outer diameter (D) | 42 mm |
| Width (L) | 23 mm |
| Weight | 0.11 kg |
In many packaging machines the clutch defines the lock-up point between the drive and the indexed shaft. A crisp, low-compliance clutch removes the lag that a soft engagement would introduce.
Drift usually comes from variable engagement lag or from wear that increases clearance. Selecting an adequate torque rating and keeping the housing rigid and clean reduces both.
No. Running above the rated inner-race speed reduces the reliability of engagement and raises temperature; choose a size suited to the indexing speed.
Send us your indexing torque, steps per minute and required repeatability, and we will match a unit from the GFK25 one way clutch bearing range for packaging machinery.
In an automated packaging machine, every millimetre of positioning error shows up as a misaligned carton, a torn film or a rejected pack. Much of that accuracy is decided not by the servo but by the one way clutch bearing that converts continuous motion into precise indexing steps. Choosing and fitting the right one way clutch bearing directly affects how tightly a machine can hold its position. This guide explains how an indexing clutch such as the SUMA GFK25 raises repeatability.
Indexing error is cumulative in packaging. A fraction of a degree lost at each step becomes a visible offset after hundreds of cycles, forcing the line to slow down or reject product. Operators often blame the control system when the real cause is compliance in the drive's one way clutch.
An indexing clutch transmits motion in one direction and freewheels in the other, allowing a continuously rotating input to drive a stepped output. The GFK series can be used as an overrunning, backstop or indexing clutch, and the GFK25 is rated at 65 N·m with a maximum inner-race speed of 5300 r/min. Selecting a size whose rated torque comfortably exceeds the indexing load keeps engagement crisp and repeatable, while using the specified fits and a rigid housing minimises wind-up. Because the design carries its own bearing (a 5905 series), the clutch holds the driven shaft accurately with no extra clearance.
Indexing clutches drive the film-feed, carton-transfer and labelling stations that define packaging precision. In each station, firm and repeatable lock-up is what keeps the print, seal and cut in register cycle after cycle. Because the one way clutch bearing carries the driven shaft on its own bearing, there is no separate clearance to introduce error, and a well-chosen one way clutch bearing turns a variable input into a crisp, repeatable step that the rest of the machine can rely on.
| Parameter | GFK25 value |
|---|---|
| Nominal torque (TKN) | 65 N·m |
| Inner-race overrunning speed | 5300 r/min |
| Outer-race overrunning speed | 3800 r/min |
| Bearing series | 5905 |
| Outer diameter (D) | 42 mm |
| Width (L) | 23 mm |
| Weight | 0.11 kg |
In many packaging machines the clutch defines the lock-up point between the drive and the indexed shaft. A crisp, low-compliance clutch removes the lag that a soft engagement would introduce.
Drift usually comes from variable engagement lag or from wear that increases clearance. Selecting an adequate torque rating and keeping the housing rigid and clean reduces both.
No. Running above the rated inner-race speed reduces the reliability of engagement and raises temperature; choose a size suited to the indexing speed.
Send us your indexing torque, steps per minute and required repeatability, and we will match a unit from the GFK25 one way clutch bearing range for packaging machinery.
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