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Reliable Bearings, Global Power

Spherical Roller Bearings

22220 EK Spherical Roller Bearings

Spherical roller bearings can accommodate heavy loads in both directions. They are self-aligning and accommodate misalignment and shaft deflections, with virtually no increase in friction or temperature. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.

Accommodate misalignment
High load carrying capacity
Relubrication features
Low friction and long service life
Increased wear resistance

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22220 EK

Bore type

Tapered 1:12

Dimensions

d	100 mm	Bore diameter
t_Δdmp	0.0 – 0.035 mm	Deviation limits of mid-range bore diameter
t_ΔSL	0.0 – 0.035 mm	Deviation limits of tapered slope
D	180 mm	Outside diameter
t_ΔDmp	-0.025 – 0.0 mm	Deviation limits of mid-range outside diameter
B	46 mm	Width
t_ΔBs	-0.08 – 0.0 mm	Deviation limits of ring width
d₂	≈ 118 mm	Shoulder diameter of inner ring
D₁	≈ 159 mm	Shoulder/recess diameter of outer ring
b	8.3 mm	Width of lubrication groove
K	4.5 mm	Diameter of lubrication hole
r_1,2	min. 2.1 mm	Chamfer dimension
	Normal	ISO tolerance class for dimensions

Abutment dimensions

D_a	max. 168 mm	Diameter of housing abutment
r_a	max. 2 mm	Radius of fillet

Calculation data

AGA performance class		AGA Explorer
Basic dynamic load rating	C	433 kN
Basic static load rating	C₀	490 kN
Fatigue load limit	P_u	49 kN
Reference speed		3 400 r/min
Limiting speed		4 500 r/min
Limiting value	e	0.24
Calculation factor	Y₁	2.8
Calculation factor	Y₂	4.2
Calculation factor	Y₀	2.8

Tolerances of run-out

Range of section height at inner ring of assembled bearing	t_Kia	6 µm
Maximum run-out of inner ring side face to the bore	t_Sd	9 µm
Range of section height at outer ring of assembled bearing	t_Kea	13 µm
Perpendicularity of outer ring outside surface	t_SD	5 µm
ISO tolerance class for geoal tolerances		P5

Radial internal clearance

Minimum initial clearance	80 µm
Maximum initial clearance	110 µm

Mounting information

Recommended tightening angle for lock nut	α	150 °

Tolerances and clearances

General bearing specifications

Tolerances: Normal, P6, P5,
tapered bore 1:12, tapered bore 1:30
Radial internal clearance: cylindrical bore, tapered bore

Bearing interfaces

Seat tolerances for standard conditions
Tolerances and resultant fit

22320 E

22220 E

Ball Bearing

Roller bearing

Thin-walled bearing

Corporate information

AGA China Information