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6306 bearing

Deep groove ball bearing

Single-row deep-groove ball bearings are highly versatile, with low friction, optimized to reduce noise and vibration, allowing for higher rotating speeds. They can withstand radial loads and bidirectional axial loads, are easy to install, and require much less maintenance than many other bearing types.

Technical Parameters

Description

Dimensions

d	30 mm	Bore diameter
tΔdmp	-0.008 – 0 mm	Deviation limits of mid-range bore diameter
D	72 mm	Outside diameter
tΔDmp	-0.011 – 0 mm	Deviation limits of mid-range outside diameter
B	19 mm	Width
tΔBs	-0.06 – 0 mm	Deviation limits of ring width
d1	≈44.6 mm	Shoulder diameter
D2	≈61.88 mm	Recess diameter
r1,2	min.1.1 mm	Chamfer dimension
	P6 and tighter width tolerance	ISO tolerance class for dimensions

Abutment dimensions

da	min.37 mm	Diameter of shaft abutment
Da	max.65 mm	Diameter of housing abutment
ra	max.1 mm	Radius of shaft or housing fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	29.6 kN
Basic static load rating	C0	16 kN
Fatigue load limit	Pu	0.67 kN
Reference speed		20 000 r/min
Limiting speed		13 000 r/min
Minimum load factor	kr	0.03
Calculation factor	f0	13.1

Tolerances of run-out

Range of section height at inner ring of assembled bearing	tKia	8 µm
Range of section height at outer ring of assembled bearing	tKea	13 µm
ISO tolerance class for geometrical tolerances		P6

Tolerances and clearances

General bearing specifications

Tolerances: Normal (metric), P6, P5, Normal (inch)
Radial internal clearance: Classes C2 to C5

Bearing interfaces

Seat tolerances for standard conditions
Tolerances and resultant fits

Warehouse

Deep groove ball bearings are one of the most common and widely used rolling bearings, widely used in various mechanical equipment due to their simple structure, strong load-bearing capacity, low friction coefficient, high speed, and easy maintenance.

DEEP GROOVE BALL BEARING