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Specifications

Brand

Nachi America, Inc.

Bore Type

Tapered Bore

Enclosure

Open

Configuration

Double Row

Roller Profile

Symmetric

Center Guidance

Floating Steel Ring

Retainer Material

Pressed Steel

Nr. of Holes

4

Weight

1.650 kg

Boundary Dimensions

Bore Size

70 mm

Outside Diameter

125 mm

Width

31 mm

Fillet Radius/Chamfer

1.5 mm

Lubricating Hole Dimensions

Groove Width A

6 mm

Hole Diameter (do)

3 mm

Technical Specifications

Dynamic Load Rating

257,000 N

Static Load Rating

220,000 N

Limiting Speed - Grease

4,400 rpm

Limiting Speed - Oil

5,600 rpm

Constant e

0.24

Axial Load Factor Y0

2.80

Axial Load Factor Y1

2.87

Axial Load Factor Y2

4.27

Radial Clearance

0.095 to 0.120 mm

Abutment and Fillet Dimensions

da (min)

78.5 mm

Da (max)

116.5 mm

ra (max)

1.5 mm