CRBF11528A
2019-03-15
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Part NO.
Open type:CRBF11528A
With seal:CRBF11528AUU
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Dimension
d:115mm
D:240mm
B:28mm
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Mounting
PCD1:139mm
PCD2:217mm
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Basic Load Ratings
Cr:84.3kN
Cor:138kN
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Equivalent Model
RU178
Mass:6.63kg
- Features
- Mounting
CRBF11528A crossed roller bearing specifications:
Type of guide Roller Space retainer Yes Material GCr15 Standard lubrication method Grease lubrication Oil hole Yes Sealing UU- framework oil seals both sides Surface treatment Black oxide treated, phosphate treatment, other Radial clearance T1/C1/C2 Rotation accuracy P5/P4/P2 Working temperature -15℃ ~ 80℃ CRBF crossed roller bearing catalog
Rotation accuracy and clearance details of CRBF11528A bearing
Accuracy P5 P4 P2 Radial run-out of the inner ring 6μm 5μm 2.5μm Axial run-out of the inner ring 6μm 5μm 2.5μm Radial run-out of the outer ring 15μm 10μm 7μm Axial run-out of the outer ring 15μm 10μm 7μm Clearance T1 C1 C2 Radial internal clearance -15~0μm 0~20μm 20~50μm CRBF11528 face mount crossed roller bearing features:
1. The inner/outer ring is a solid one-piece structure, so bearings can provide high stiffness.
2. One single bearing can sustain radial, axial, and moment loads at the same time.
3. High rigidity & rotation accuracy. The compact structure of the CRBF series reduces the influence of the installation.
4.Miniaturization. The inner ring and outer ring with mounting holes, so it can be easily mounted to a device with bolts without need for housing and fixing plate, so surrounding parts of the bearing can be made compact, which contributes to miniaturization and a weight saving of devices.CRBF11528A crossed roller bearing installation instructions
Cautions: For crossed roller bearings with split outer ring, when the rigidity of the mounting parts is not sufficient, stress concentration will occur at the contact area between the rollers and raceways, and the bearing performance will deteriorate significantly.
Therefore, it is necessary to carefully examine the rigidity of housing and the strength of fixing bolts when a large moment will be applied.
1. Before installation, please clean bearing bracket, shaft, or other components, make sure there is no burrs or rough edge.
2.Fix the inner and outer rings in the axial direction directly to the mounting surface by fixing bolts
3. If a large number of radial load and/or moment is applied, it is recommended to prepare the flange part as Fig.4.
1. Before installation, please clean bearing bracket, shaft, or other components, make sure there is no burrs or rough edge.