CRBF108AT
2019-03-01
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Part NO.
Open type:CRBF108AT
With seal:CRBF108ATUU
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Dimension
d:10mm
D:52mm
B:8mm
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Mounting
PCD1:16mm
PCD2:42mm
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Basic Load Ratings
Cr:2.91kN
Cor:2.43kN
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Equivalent Model
/
Mass:0.12kg
- Features
- Mounting
CRBF108AT 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 Working temperature -15℃ ~ 80℃ CRBF108AT bearing is open type, CRBF108ATUU cross roller bearing is sealed type. Unless specified otherwise, BRS will fill proper amount of grease into bearings before delievery, so they can be immediately put into application without extra lubricating during operation.
CRBF108ATUU crossed roller bearing features:
1.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, compact structure reduce the influence by installation
4.Miniaturization. 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 weight saving of devices.CRBF Crossed Roller Bearing Rotation Accuracy Test
CRBF cross roller ring of other dimensions
Part No. Dimension (mm) Mounting (mm) Load Rating (kN) Open Type Sealed Type d D B rsmin PCD1 PCD2 Cr Cor CRBF 108 AT CRBF 108 AT UU 10 52 8 0.3 16 42 2.91 2.43 CRBF 2012 AT CRBF 2012AT UU 20 70 12 0.3 28 57 7.6 8.37 CRBF 2512 AT CRBF 2512 AT UU 25 80 12 0.6 35 67 8.61 10.6 CRBF 3515 AT CRBF 3515 AT UU 35 95 15 0.6 45 83 17.3 20.9 CRBF 5515 AT CRBF 5515 AT UU 55 120 15 0.6 65 105 20.1 27.7 CRBF 8022 AT CRBF 8022 AT UU 80 165 22 0.6 97 148 51.1 72 CRBF 8022 A CRBF 8022 A UU 80 165 22 0.6 97 148 51.1 72 CRBF 8022 AD CRBF 8022 AD UU 80 165 22 0.6 97 148 51.1 72 FAQ
1.What does the suffix A/AD/AT/UU mean?
A: Mounting holes of both inner and outer ring are counterbore holes, which face the same direction.
AD: Mounting holes of both inner and outer ring are counterbore holes, which face the opposite direction.
AT: Mounting holes of outer ring are counterbore holes, while mounting holes of inner ring are tapped holes.
UU: Sealed both sides. (Unless otherwise stated, BRS crossed roller bearings are all sealed type, and pre-lubricated)CRBF108AT crossed roller bearing installation instructions
CRBF108ATUU Bearing Mounting Dimensions
da: 24mm
Da: 31mm
PCD1 : 16mm
PCD2: 42mm
Inner ring mounting hole 4-M3 through
Outer ring mounting hole 6-φ3.4 drilled through, φ6.5 counter bore 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 be deteriorated 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 large number of radial load and/or moment is applied, it is recommended to prepare 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.