Luoyang MC Bearing Technology Co., Ltd.
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China custom precision RU178G cross roller bearing for robot arms

China Custom Precision RU178G Cross Roller Bearing For Robot Arms

Reference FOB Price:
US300 ~ 800 / Piece
Min. Order:
1 Piece
Stock:
100 Piece
Production Capacity:
100pc/month
Port:
qingdao, shanghai, tianjin, ningbo, guangzhou
Payment term:
fob, cif, exw
Delivery time:
15-30 days
Technical Parameters:
Product Designations:
RU178G
HS Code:
8482109000
Structure:
cross roller slewing bearing
Number of Rows:
single row
Inside Diameter:
115 mm
Outside Diameter:
240 mm
Thickness:
28 mm
Weight:
6.8 KG
Dynamic load Capacity, Radial (Cr):
80.3
Static load Capacity, Radial (Cor):
135
Limiting speed (Oil rpm):
EP2
Demensions:
240*115*28
Brand:
LYMC
Radial Clearance Trade No.:
0.01
Precision Rating:
P5/P4/P2
Load Direction:
radial
Bearing Material:
42CrMo/50Mn/custom
Cage material:
Nylon/steel/copper
Seals Type:
open
Seal Material:
NBR
Ball Material:
GCr15
Roller Material:
GCr15
Transport Package:
export wooden cases
Shipping Ways:
sea, air, express, train
Country of Origin:
China
Service:
reply within 24 hours, oem service, design service, technical support
Quality Control:
iso9001, QC report
Outer Ring Width:
28
Inner Ring Width:
28
Rolling Element:
steel roller
Chamfer (r):
1.5
Gear Options:
non-gear
Application:
joints and swiveling uits of industrial robots, swiveling tables ofmachinine centers, precision rotary tables, medical eouipmen, measuring instruments and iC manufacturing machines.
China Custom Precision RU178G Cross Roller Bearing For Robot Arms

China custom precision RU178G cross roller bearing for robot arms

Bearing model number: RU178G
Bearing types cross roller slewing bearing
Bearing material 50Mn/steel
D(outer ring) 240mm
d(inner ring) 115mm
Dp(roller pitch circle diameter) 178mm
B B1(width) 28mm
r(min)(Chamfer) 1.5
Shoulder height ds 161mm
Shoulder height Dh 195mm
Basic load rating(radial) Cr 80.3kN
Basic load rating(radial) Cor 135kN
Rotation accuracy P5/P4/P2
Mass 6.8kgs
mounting hole(inner ring) 12-φ9 through φ14 counterbore depth 8.6
mounting hole(outer ring) 12-φ9 through φ14 counterbore depth 8.6
Working temperature -15℃-80℃

Features of crossed roller bearings

1.Structure features:

With the Cross Roller Bearing, cylindrical rollers are aranged croswise, with each roller perpendicular to the adjacent roller,in a 90°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, Since the Cross-roller ring achieves high rigidity and the precision can reach up to p5,p4.p2, despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling uits of industrial robots, swiveling tables ofmachinine centers, precision rotary tables, medical eouipmen, measuring instruments and iC manufacturing machines.

2.Rotation accuracy:

The spacer retainer fiting among cross-arrayed rollers prevents rollers from skewing and the rotation torque from increasing due to friction between rollers. Unlike conventional types using steel sheet retainers,the Cross Roller Bearing des not cause displacement or locking of rollers and provides a stable rotation torque. Since the inner and ouer rings are designed to be separable, the bearing clearance can be adjusted. in addition, highly accurate rotary motion is ensured through adjusting the bearing clearance to provide a preload.

3.Usage characteristics:

The inner and outer rings, which are separable, are secured to the Cros Roller Bearing body afer 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 Bearing. The spacer retainer keeps rollers in their proper position, thereby preventing them from skewing. This eliminates friction between rollers, and therefore secures a stable rotation torque.the cross array of rollers allows a single Cross Roller Bearing unit to receive loads in all directions, increasing the rigidity to three to four times greater than the conventional type.

More types we can Manufacture:

RU42 RU66 RU85

RU124G/RU124 RU124X

RU148G/RU148 RU148X

RU178G/RU178 RU178X

RU228G/RU228 RU228X

RU297G/RU297 RU297X

RU445G/RU445 RU445X

Any interest or more details, please feel free to contact us.

 


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High quality RU178G ( 6.8 kg Mass, ID: 115 mm OD: 240 mm WD: 28 mm , single row Rows , 0.01 Radial Clearance , P5/P4/P2 Accuracy Class , 42CrMo/50Mn/custom Material , 80.3 Radial dynamic , 135 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. RU178G. 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.
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