• Simple, versatile and robust design
  • Low friction
  • High-speed capability
  • Accommodate radial and axial loads in both directions
  • Require little maintenance

Description

Deep groove ball bearing

Single row deep groove ball bearings are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types.

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Dimensions - 6303

Dimensions

d
17 mm
Bore diameter
tΔdmp -0.007  –  0 mm Deviation limits of mid-range bore diameter
D
47 mm
Outside diameter
tΔDmp -0.009  –  0 mm Deviation limits of mid-range outside diameter
B
14 mm
Width
tΔBs -0.06  –  0 mm Deviation limits of ring width
d1
26.52 mm
Shoulder diameter
D2
39.58 mm
Recess diameter
r1,2
min. 1 mm
Chamfer dimension
P6 and tighter width tolerance
ISO tolerance class for dimensions
Abutment dimensions - 6303

Abutment dimensions

da
min. 22.6 mm
Diameter of shaft abutment
Da
max. 41.4 mm
Diameter of housing abutment
ra
max. 1 mm
Radius of shaft or housing fillet

Calculation data

Basic dynamic load rating C
14.3 kN
Basic static load rating C0
6.55 kN
Fatigue load limit Pu
0.275 kN
Reference speed
34 000 r/min
Limiting speed
22 000 r/min
Minimum load factor kr
0.03
Calculation factor f0
12

Tolerances of run-out

Range of section height at inner ring of assembled bearing tKia
4 µm
Maximum run-out of inner ring side face to the bore tSd
7 µm
Maximum axial run-out of inner ring of assembled bearing tSia
7 µm
Range of section height at outer ring of assembled bearing tKea
7 µm
Perpendicularity of outer ring outside surface tSD
4 µm
Maximum axial run-out of outer ring of assembled bearing tSea
8 µm
ISO tolerance class for geometrical tolerances
P5
Dimensions - 6303

Dimensions

d
0.6693 in
Bore diameter
tΔdmp -7  –  0 µm Deviation limits of mid-range bore diameter
D
1.8504 in
Outside diameter
tΔDmp -9  –  0 µm Deviation limits of mid-range outside diameter
B
0.5512 in
Width
tΔBs -60  –  0 µm Deviation limits of ring width
d1
1.0441 in
Shoulder diameter
D2
1.5583 in
Recess diameter
r1,2
min. 0.0394 in
Chamfer dimension
P6 and tighter width tolerance
ISO tolerance class for dimensions
Abutment dimensions - 6303

Abutment dimensions

da
min. 0.8898 in
Diameter of shaft abutment
Da
max. 1.6299 in
Diameter of housing abutment
ra
max. 0.0394 in
Radius of shaft or housing fillet

Calculation data

Basic dynamic load rating C
3 215 lbf
Basic static load rating C0
1 472 lbf
Fatigue load limit Pu
62 lbf
Reference speed
34 000 r/min
Limiting speed
22 000 r/min
Minimum load factor kr
0.03
Calculation factor f0
12

Tolerances of run-out

Range of section height at inner ring of assembled bearing tKia
4 µm
Maximum run-out of inner ring side face to the bore tSd
7 µm
Maximum axial run-out of inner ring of assembled bearing tSia
7 µm
Range of section height at outer ring of assembled bearing tKea
7 µm
Perpendicularity of outer ring outside surface tSD
4 µm
Maximum axial run-out of outer ring of assembled bearing tSea
8 µm
ISO tolerance class for geometrical tolerances
P5