CRBF2012ATUD Sealed High Rigidity Crossed Roller Bearings (Mounting Holed Type)

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CRBF2012ATUD

Bore Diameter:20 mm

Outside Diameter:70 mm

Width:12 mm

Weight:0.31 kg

Min. Order:1 Piece

The CRBF2012ATUD Crossed roller bearings are suitable for high-precision, high-rigidity, and space-constrained rotary applications. Classic applications include industrial robot joints and positioners, CNC machine tool rotary tables and indexing heads, medical CT scanner rotating frames, radar antenna rotation mechanisms, precision measuring instruments, and aerospace simulation rotary tables.

The CRBF2012ATUD bearing is a Sealed High Rigidity Crossed Roller Bearings (Mounting Holed Type) with an inner diameter of 20 mm , an outer diameter of 70 mm, a width of 12 mm. It typically uses ABEC-1; ABEC-3; ABEC-5; ABEC-7; ABEC-9 grade precision tolerances and 50Mn,42CrMo rings, GCr15 rolling mlement. It primarily bears radial, thrust and moment, Its dynamic radial rated load is approximately 7600 N, its static radial rated load is approximately 8370 N. It uses T1; C1; C2 standard radial clearance, UD = One side sealed in the opposite direction to counter bored mounting holes on outer ring type, Special synthetic rubber. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

20 mm

Outside Diameter:

70 mm

Thickness:

12 mm

Weight:

0.31 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

7600 N

Static load Capacity, Radial (Cor):

8370 N

Reference speed (Grease rpm):

1333

Specifications:

Structure:

Crossed Roller Bearings

Number of Rows:

One

Radial Clearance Trade No.:

T1; C1; C2

Precision Rating:

ABEC-1; ABEC-3; ABEC-5; ABEC-7; ABEC-9

Load Direction:

radial, thrust and moment

Bearing Material:

50Mn,42CrMo

Seals Type:

UD = One side sealed in the opposite direction to counter bored mounting holes on outer ring

Seal Material:

Special synthetic rubber

Rolling Mlement Material:

GCr15

Bore Type:

Cylindrical

Operating Temperature:

-20 to 110 °C

System of Measurement:

Metric

Series:

CRBF..ATUU

Rolling Element:

cylindrical rollers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

30 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

CRBF2012ATUD bearings ( 20 mm x 70 mm x 12 mm) have the advantages of The rollers are arranged in a cross pattern, allowing them to withstand radial, axial, and overturning moments simultaneously. They offer high rigidity and rotational accuracy while compact and space-saving design, and easy installation, and are therefore widely used in the Industrial robots, CNC machine tools, medical equipment, precision measuring instruments and aerospace.

Part Number	CRBF2012ATUD
Bearing Type	Sealed High Rigidity Crossed Roller Bearings (Mounting Holed Type)
Mounting holes	T = With female threaded mounting holes on the inner ring
Type	CRBF..ATUU
Seal Type	UD = One side sealed in the opposite direction to counter bored mounting holes on outer ring
Seal Material	Special synthetic rubber
Bore Type	Cylindrical
Rolling Element Type	cylindrical rollers
Oil holes	Outer ring has an oil groove and two oil holes
Manufacturer Part Code	CRBF 2012 AT UD
Load	radial, thrust and moment
Interchangeable	IKO CRBF2012ATUD
Units	Metric
Rows NO.	One
Rolling Element Material	GCr15
Inner/Outer Ring Material	50Mn,42CrMo
Lubrication	ALVANIA EP grease 2 (pre-packed)
Accuracy class	ABEC-1; ABEC-3; ABEC-5; ABEC-7; ABEC-9
Guidance of cylindrical roller	with separator
Temperature - T(min) [°C]	-20
Temperature - T(max) [°C]	110
Shaft diameter [inch]	0.787
d φ Inside [inch]	0.787
D Φ Outside [inch]	2.756
B Width [inch]	0.472
r₁ min Chamfer [inch]	0.012
r₂ min Chamfer [inch]	0.012
PCD₁ Mounting holes [inch]	1.102
Inner ring Mounting holes	6-M3 through
PCD₂ Mounting holes [inch]	2.244
Outer ring Mounting holes	6-φ3.4 through, φ6.5 counter bore depth 3.3
da Mounting dimensions [inch]	1.437
Da Mounting dimensions [inch]	1.909
n_B Reference speed (grease) [r/min]	1333
C_r Radial Dynamic [lbf]	1708
C_0r Radial Static [lbf]	1881
Internal Clearance	T1; C1; C2
Radial internal clearances - T1	min: -10 µm , max: 0 µm
Radial internal clearances - C1	min: 0 µm , max: 10 µm
Radial internal clearances - C2	min: 10 µm , max: 20 µm
m Bearing Weight [kg]	0.31
Similar Model	CRBF 2012 AT UD T1 , CRBF 2012 AT UD T1 P6 CRBF 2012 AT UD T1 P5 , CRBF 2012 AT UD T1 P4 CRBF 2012 AT UD T1 P2 , CRBF 2012 AT UD C1 CRBF 2012 AT UD C1 P6 , CRBF 2012 AT UD C1 P5 CRBF 2012 AT UD C1 P4 , CRBF 2012 AT UD C1 P2 CRBF 2012 AT UD C2 , CRBF 2012 AT UD C2 P6 CRBF 2012 AT UD C2 P5 , CRBF 2012 AT UD C2 P4 CRBF 2012 AT UD C2 P2

The CRBF2012ATUD Crossed roller bearings consist of inner and outer rings, cylindrical rollers, spacers, and seals. The rollers are arranged at 90° intervals within a V-shaped raceway, allowing for multi-directional load bearing even in a single row.

Crossed roller bearings can simultaneously withstand radial loads, bidirectional axial loads, and overturning moments. They possess extremely high rigidity and rotational accuracy, and their compact structure saves installation space, simplifying machine tool design.

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High quality CRBF2012ATUD ( 0.31 kg Mass, ID: 20 mm OD: 70 mm WD: 12 mm , CRBF..ATUU Series , One Rows , T1; C1; C2 Radial Clearance , ABEC-1; ABEC-3; ABEC-5; ABEC-7; ABEC-9 Accuracy Class , 50Mn,42CrMo Material , 7600 Radial dynamic , 8370 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. CRBF2012ATUD. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

CRBF2012ATUD Sealed High Rigidity Crossed Roller Bearings (Mounting Holed Type)

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