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

487.000 kg

Boundary Dimensions

Bore Size

630 mm

Outside Diameter

920 mm

Width

212 mm

Fillet Radius/Chamfer

7.5 mm

Lubricating Hole Dimensions

Groove Width A

40 mm

Hole Diameter (do)

20 mm

Technical Specifications

Dynamic Load Rating

8,350,000 N

Static Load Rating

13,100,000 N

Limiting Speed - Grease

430 rpm

Limiting Speed - Oil

570 rpm

Constant e

0.22

Axial Load Factor Y0

3.00

Axial Load Factor Y1

3.07

Axial Load Factor Y2

4.57

Radial Clearance

0.310 to 0.480 mm

Abutment and Fillet Dimensions

da (min)

666 mm

Da (max)

884 mm

ra (max)

6 mm