CRBF2012AT
2019-03-15
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Part NO.
Open type:CRBF2012AT
With seal:CRBF2012ATUU
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Dimension
d:20mm
D:70mm
B:12mm
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Mounting
PCD1:28mm
PCD2:57mm
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Basic Load Ratings
Cr:7.6kN
Cor:8.37kN
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Equivalent Model
RU42
Mass:0.31kg
- Features
- Mounting
CRBF2012 ATUU 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℃ Equivalent model: RU42
CRBF crossed roller bearing catalog
Rotation accuracy and clearance details of CRBF2012 face-mount crossed roller bearings
Accuracy P5 P4 P2 Radial run-out of the inner ring 4μm 3μm 2.5μm Axial run-out of the inner ring 4μm 3μm 2.5μm Radial run-out of the outer ring 8μm 5μm 4μm Axial run-out of the outer ring 8μm 5μm 4μm Clearance T1 C1 C2 Radial internal clearance -10~0μm 0~10μm 10~20μm CRBF2012AT crossed roller bearing features:
1. The integrated inner ring and outer ring, provide high stiffness.
2. Sustain radial, axial, and moment loads at the same time.
3. High rigidity & rotation accuracy, the compact structure 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 the 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.CRBF2012AT UU crossed roller bearing installation instructions
CRBF2012ATUU Bearing Mounting Dimensions
da: 36.5mm
Da: 48.5mm
PCD1: 28mm
PCD2: 57mm
Inner ring mounting hole 6-M3 through
Outer ring mounting hole 6-φ3.4 drilled through, φ6.5 counterbore depth 3.3
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.