Nachi America Inc.
Terms

Specifications

Bore Type

Cylindrical Bore

Enclosure

Open

Configuration

Double Row

Roller Profile

Symmetric

Center Guidance

Fixed Inner Ring Rib

Retainer Material

Machined Brass

Nr. of Holes

6

Weight

120.000 kg

Boundary Dimensions

Bore Size

280 mm

Outside Diameter

460 mm

Width

180 mm

Fillet Radius/Chamfer

5 mm

Lubricating Hole Dimensions

Groove Width A

32 mm

Hole Diameter (do)

15 mm

Technical Specifications

Dynamic Load Rating

3,550,000 N

Static Load Rating

4,800,000 N

Limiting Speed - Grease

840 rpm

Limiting Speed - Oil

1,000 rpm

Constant e

0.39

Axial Load Factor Y0

1.70

Axial Load Factor Y1

1.74

Axial Load Factor Y2

2.59

Radial Clearance

0.170 to 0.260 mm

Abutment and Fillet Dimensions

da (min)

302 mm

Da (max)

438 mm

ra (max)

4 mm