CategoryAngular Contact Thrust Ball Bearings, Double Direction
Weight and Dimensions
Inner (d) MM
25
Outer (D) MM
57
Width (B) MM
28
Inner (d) Inch
0.9843
Outer (D) Inch
2.2441
Width (B) Inch
1.1024
Weight (kg)
0.34
Product Properties
Cage Type
P - Plastic Molded Cage
Precision
P5 Precision (Higher than P6)
Data from Schaeffler (medias)
Width (b) mm
28
Basic dynamic load rating, axial (C a)
27500
Basic static load rating, axial (C 0a)
55000
Limiting speed for grease lubrication (n G Grease)
5700
Thermally safe operating speed (n ϑ)
2600
Suffix description
2RSRubber Seals At Each Side Of The Bearing
PEEnlarged Diameter Tolerance And Axial Runout To P5 Tolerance Class For Radial Bearings
L138NS Hi-Lube Grease
Product description
The ZKLN2557-2RS-PE-L138 INA is a double direction angular contact thrust ball bearing. This precision bearing type, also known as an axial angular contact ball bearing, is designed for use in screw drives and other applications requiring high running accuracy and load capacity. The bearing consists of a plastic cage with a double row of balls, a thick-walled outer ring, and a split inner ring. Thanks to the 60-degree contact angle, radial and high axial forces can be absorbed in both directions.
The ZKLN2557-2RS-PE-L138 INA is suitable for installation in a housing bore. The bearing’s outer ring is secured with a cover, locknut, or other clamping mechanism. With the ZKLN2557-2RS-PE-L138 INA, a compact, rigid bearing arrangement can be achieved that is easy to assemble and disassemble.
The ZKLN2557-2RS-PE-L138 INA is a bearing variant with less strict tolerances compared to the higher-priced version without the PE suffix. This bearing is very suitable for applications where a bearing arrangement with lower precision is sufficient. The adjacent structure does not need to be engineered as precisely, keeping costs low.
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