Specifications

Brand

Nachi America, Inc.

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

8

Weight

144.000 kg

Boundary Dimensions

Bore Size

300 mm

Outside Diameter

540 mm

Width

140 mm

Fillet Radius/Chamfer

5 mm

Lubricating Hole Dimensions

Groove Width A

26 mm

Hole Diameter (do)

12 mm

Technical Specifications

Dynamic Load Rating

3,700,000 N

Static Load Rating

4,300,000 N

Limiting Speed - Grease

900 rpm

Limiting Speed - Oil

1,100 rpm

Constant e

0.27

Axial Load Factor Y0

2.43

Axial Load Factor Y1

2.49

Axial Load Factor Y2

3.71

Radial Clearance

0.280 to 0.370 mm

Abutment and Fillet Dimensions

da (min)

322 mm

Da (max)

518 mm

ra (max)

4 mm