CN/ EN

21306 CC

Spherical roller bearings

Spherical roller bearings can withstand large axial loads in both directions. These bearings are self-aligning and can withstand misalignment and shaft deflection with little or no increase in friction or temperature. They can be used in modular systems including housings, mounting sleeves and hydraulic nuts.

Withstands misalignment
High load carrying capacity
Low friction
Long service life
Increased wear resistance

+86 13817962999

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Overview

Technical Parameters

Overview

Skim Through

Size

Inner Diameter	30.0mm
Outer Diameter	72.0mm
Width	19.0mm

Performance

Basic rated dynamic load	65.7kN
Basic rated static load	61.0kN
Reference speed	9500.0r/min
Limiting speed	13000.0r/min
JOJI Performance Class	JOJI

Attributes

Number of columns	2
Locating feature, bearing outer ring	without
Hole type	Cylindrical hole
Cage	Steel plate
Radial clearance	CN
Tolerance class	Normal
Dimensional tolerance class	Normal
Tolerance class of runout	P5
Sealing	without
Lubrication	without
Relubrication function	without

Logistics

Net weight	0.409kg
eClass Code	23-05-09-11
UNSPSC Code	31171510

Technical Parameters

Size

d	30.0mm	Hole diameter
D	72.0mm	Outer diameter
B	19.0mm	Width
_d2	≈43.3mm	Diameter of inner ring retaining edge
_D1	≈58.8mm	Outer ring flange/groove diameter
_r1,2	min.1.1mm	Chamfer size

Shoulder size

_da	min.37.0mm	Shaft shoulder diameter
_Da	max.65.0mm	Bearing housing shoulder diameter
_ra	max.1.0mm	Radius of rounded corners

Data calculation

JOJI Performance Class		JOJI
Basic dynamic load rating	C", "unit" : "kN	65.7
Basic static load rating	_C0 ", "unit" : "kN	61.0
Fatigue load limit	_Pu ", "unit" : "kN	6.8
Reference speed		9500.0r/min
Limiting speed		13000.0r/min
Limit value	e	0.27
Calculation coefficient	_Y1	2.5
Calculation factor	_Y2	3.7
Calculation factor	_Y0	2.5

Tolerance class

Dimensional Tolerance	Normal
Radial runout	P5