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High Precision RA 15008 Crossed Roller Bearings

High Rotation Accuracy of RA 15008 Cross Roller Bearing/ CRBS 1508 Bearings

With the Cross-Roller Bearing, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90 degree V groove, separated from each other by a spacer retainer. This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads.

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Availability:
  • RA 15008, RA 15008C
  • EASIER / TKW
  • CRBS1508 A UU, CRBS1508 V UU
  • CRBS1508, CRBS1508V
  • Best Factory Price

RA Type THK Cross roller bearings

Part Number RA15008 Bearing
Bearing Type Crossed Roller Bearings
Interchange CRBS 1508 Bearings
Construction Single Row,Combined Radial; Thrust; and Moment
Seal Type Open
ABEC Rating ABEC-5, ABEC-7, ABEC-9
Ring Material Steel
Roller Material Steel
Shaft dia. mm 150
Mass(kg) 0.19
Bore Dia (d) 150
Outer Dia (D) 166
Width (B) 8


The outer ring of the Standard Type Crossed Roller Bearings is made of two split pieces, which are bolted together to prevent separation during transportation or mounting, enabling easy handling. These bearings are widely used in the rotating parts of industrial robots, machine tools, medical equipment, etc., which require compactness, high rigidity and high rotational accuracy. In addition, bearings made of stainless steel and those with inner and outer rings provided with mounting holes are also available on request.


● High Rotation Accuracy of RA 15008 Cross Roller Bearing/ CRBS 1508 Bearings


● Easy Handling

The inner and outer rings, which are separable, are secured to the Cross-Roller Ring body after the rollers and spacer retainers are installed. This procedure prevents the rings from separating from each other. Thus, it is easy to handle the rings when installing the Cross-Roller Ring.




Major dimensions Shoulder dimensions Basic load rating Mass
Shaft diameter
(radial)
TKW Model No. Inner diameter Outer diameter Roller pitch circle diameter









d D dp Width Greasing hole


C C0





B B1 a b rmin ds Dh kN kN kg
50 RA 5008 50 66 57 8 2 0.8 0.5 53.5 60.5 5.1 7.19 0.08
60 RA 6008 60 76 67 8 2 0.8 0.5 63.5 70.5 5.68 8.68 0.09
70 RA 7008 70 86 77 8 2 0.8 0.5 73.5 80.5 5.98 9.8 0.1
80 RA 8008 80 96 87 8 2 0.8 0.5 83.5 90.5 6.37 11.3 0.11
90 RA 9008 90 106 97 8 2 0.8 0.5 93.5 100.5 6.76 12.4 0.12
100 RA 10008 100 116 107 8 2 0.8 0.5 103.5 110.5 7.15 13.9 0.14
110 RA 11008 110 126 117 8 2 0.8 0.5 113.5 120.5 7.45 15 0.15
120 RA 12008 120 136 127 8 2 0.8 0.5 123.5 130.5 7.84 16.5 0.17
130 RA 13008 130 146 137 8 2 0.8 0.5 133.5 140.5 7.94 17.6 0.18
140 RA 14008 140 156 147 8 2 0.8 0.5 143.5 150.5 8.33 19.1 0.19
150 RA 15008 150 166 157 8 2 0.8 0.5 153.5 160.5 8.82 20.6 0.2
160 RA 16013 160 186 172 13 2.5 1.6 0.8 165 179 23.3 44.9 0.59
170 RA 17013 170 196 182 13 2.5 1.6 0.8 175 189 23.5 46.5 0.64
180 RA 18013 180 206 192 13 2.5 1.6 0.8 185 199 24.5 49.8 0.68
190 RA 19013 190 216 202 13 2.5 1.6 0.8 195 209 24.9 51.5 0.69
200 RA 20013 200 226 212 13 2.5 1.6 0.8 205 219 25.8 54.7 0.71


RA 15008 Crossed Roller Bearings are compact bearings with their rollers alternately crossed at right angles to each other between inner and outer rings. The orthogonal array of rollers allows the bearing to handle complex loads simultaneously from any direction, which makes assembly possible without needing to worry about load direction.


Type of Crossed Roller Bearings

1.Split outer ring type

2.Split inner ring type

3.High rigidity type

4.Split outer ring with mounting holes

5.High rigidity with mounting holes


When you purchase the crossed roller bearings, please confirm the designation first.

1.  Model RU (Integrated Inner/Outer Ring Type) 

2. Model RB (Separable Outer Ring Type for Inner Ring Rotation)

3. Model RE (Separable Inner Ring Type for Outer Ring Rotation)

4. USP-Grade Series of Models RB/RE

5. Model RA (Separable Outer Ring Type for Inner Ring Rotation)

6. Model RA-C (Single-Split Type)


cross roller bearings


Suffix of Crossed Roller Bearings

P6: Grade 6 rotation accuracy

PE6: Grade 6 rotation accuracy+Grade 6 dimensional accuracy

P5: Grade 5 rotation accuracy

PE5: Grade 5 rotation accuracy+Grade 5 dimensional accuracy

P4: Grade 4 rotation accuracy

PE4: Grade 4 rotation accuracy+Grade 4 dimensional accuracy

P2: Grade 2 rotation accuracy

PE2: Grade 2 rotation accuracy+Grade 2 dimensional accuracy

USP: USP Grade rotation accuracy


Radial clearance symbol

CC0: Negative clearance(preload)

C0: Positive clearance

C1: Positive clearance (greater than C0)


Seal symbol

No symbol: without a seal

UU: With seal attached on both sides

U: With seal attached on one side


Symbol

No symbol: Models RB,RE And RA

C: Model RA-C

E-mail: sales@xrbearing.com, brandbearings@gmail.com

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