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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

548.000 kg

Boundary Dimensions

Bore Size

420 mm

Outside Diameter

760 mm

Width

272 mm

Fillet Radius/Chamfer

7.5 mm

Lubricating Hole Dimensions

Groove Width A

45 mm

Hole Diameter (do)

20 mm

Technical Specifications

Dynamic Load Rating

9,400,000 N

Static Load Rating

12,500,000 N

Limiting Speed - Grease

490 rpm

Limiting Speed - Oil

640 rpm

Constant e

0.37

Axial Load Factor Y0

1.80

Axial Load Factor Y1

1.84

Axial Load Factor Y2

2.74

Radial Clearance

0.370 to 0.500 mm

Abutment and Fillet Dimensions

da (min)

456 mm

Da (max)

724 mm

ra (max)

6 mm