NTN BEARING USA CORP.

NSK z969 Bearing

 

Sleeve Bearings

When sleeve bearing analysis is discussed in our industry it is typically inferred that proximity transducers are being utilized to directly measure shaft displacement within the bearing. Unlike casing mounted transducers used for routine data collection proximity transducers are usually permanently mounted on the machinery close to the bearing. These transducers are non-contacting devices which can directly measure the Peak-to-Peak displacement of the shaft as it rotates within its bearing support. In most cases, 2 proximity transducers are installed at a bearing location as an XY pair mounted at 90° to each other. This configuration thus allows for the analyst to determine planes of maximum and minimum motion along with the shape of the shaft motion within the bearing.

As we will see, the shape of the shaft motion along with procession will be important elements in determining machine condition in sleeve bearings. In many cases these parameters may be more important than the amplitude and frequency of the vibration. To correctly evaluate the shape and procession, it is very important that correct transducer convention be followed.

ISOSTATIC SF-1624-12  Sleeve Bearings
ISOSTATIC SF-1624-12 Sleeve Bearings
Round flange shape
6
ISOSTATIC SF-1624-6  Sleeve Bearings
ISOSTATIC SF-1624-6 Sleeve Bearings
Steel
33
ISOSTATIC SF-1624-8  Sleeve Bearings
ISOSTATIC SF-1624-8 Sleeve Bearings
1.05 kN
0.41 Hz
ISOSTATIC AA-2304-6  Sleeve Bearings
ISOSTATIC AA-2304-6 Sleeve Bearings
DD (Contact Rubber S
8
ISOSTATIC SF-1622-12  Sleeve Bearings
ISOSTATIC SF-1622-12 Sleeve Bearings
30 mm
48.4 mm
ISOSTATIC SF-1622-5  Sleeve Bearings
ISOSTATIC SF-1622-5 Sleeve Bearings
NS Hairyu-bu Grease
Stainless Steel
ISOSTATIC SF-1620-20  Sleeve Bearings
ISOSTATIC SF-1620-20 Sleeve Bearings
UC205-14G2
36.5 mm
ISOSTATIC SF-1622-8  Sleeve Bearings
ISOSTATIC SF-1622-8 Sleeve Bearings
81
Bearings with Housin
ISOSTATIC SF-1620-9  Sleeve Bearings
ISOSTATIC SF-1620-9 Sleeve Bearings
Single Track
Radial
ISOSTATIC AA-2203-9  Sleeve Bearings
ISOSTATIC AA-2203-9 Sleeve Bearings
2,510 kN
-40 °C
ISOSTATIC SF-1620-8  Sleeve Bearings
ISOSTATIC SF-1620-8 Sleeve Bearings
100
SH33M
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