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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

461.000 kg

Boundary Dimensions

Bore Size

400 mm

Outside Diameter

720 mm

Width

256 mm

Fillet Radius/Chamfer

6 mm

Lubricating Hole Dimensions

Groove Width A

45 mm

Hole Diameter (do)

20 mm

Technical Specifications

Dynamic Load Rating

8,500,000 N

Static Load Rating

11,100,000 N

Limiting Speed - Grease

510 rpm

Limiting Speed - Oil

670 rpm

Constant e

0.36

Axial Load Factor Y0

1.82

Axial Load Factor Y1

1.86

Axial Load Factor Y2

2.77

Radial Clearance

0.220 to 0.340 mm

Abutment and Fillet Dimensions

da (min)

428 mm

Da (max)

692 mm

ra (max)

5 mm