S71906 ACEGA/P4A

Super-precision, high speed, E design, universally matchable single row angular contact ball bearing with seals

These super-precision, high-speed, E design, single row angular contact ball bearings, with non-contact seals, accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only.

They are designed for high-speed operation and, compared to SKF B design high-speed bearings, have a slightly higher speed capability and can accommodate heavier loads. Being universally matchable, they can be used together in arrangements to provide effective load sharing, without the use of shims or similar devices.

  • Very high running accuracy
  • Accomodate very high speeds
  • Universally matchable
  • Non-contact seals
  • Integral sealing prolongs bearing service life

Dimensions

d
30 mm
 Bore diameter
D
47 mm
 Outside diameter
B
9 mm
 Width
d1
35.8 mm
 Shoulder diameter of inner ring (large side face)
d2
34.4 mm
 Shoulder diameter of inner ring (small side face)
D2
43.4 mm
 Recess diameter of outer ring (large side face)
r1,2
min.0.3 mm
 Chamfer dimension
r3,4
min.0.15 mm
 Chamfer dimension
a
13.5 mm
 Distance from side face to pressure point
Abutment dimensions - S71906 ACEGA/P4A

Abutment dimensions

da
min.32 mm
 Diameter of shaft abutment
da
max.35.4 mm
 Diameter of shaft abutment
db
min.32 mm
 Diameter of shaft abutment
db
max.34 mm
 Diameter of shaft abutment
Da
max.45 mm
 Diameter of housing abutment
Db
max.46.2 mm
 Diameter of housing abutment
ra
max.0.3 mm
 Radius of fillet
rb
max.0.15 mm
 Radius of fillet

Calculation data

Basic dynamic load rating C
5.4 kN
Basic static load rating C0
3.05 kN
Fatigue load limit Pu
0.129 kN
Attainable speeds
Refer to catalogue data or contact SKF for the attainable speeds
Attainable speed for grease lubrication
To be calculated: Single bearing () x speed reduction factor (see table below)
Attainable speed for oil-air lubrication
To be calculated: Single bearing () x speed reduction factor (see table below)
Contact angle α
25 °
Ball diameter Dw
4.762 mm
Number of rows i
1
Number of balls (per bearing) z
18
Preload and stiffness (back-to-back, face-to-face)
Preload class
A
Preload when unmounted G
48 N
Axial stiffness
55 N/µm
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.08
Correction factor dependent on contact angle f1
0.99
Correction factor, preload class A f2A
1
Correction factor for hybrid bearings fHC
1
Factors for equivalent bearing load calculation
Limiting value e
0.68
Axial load factor (single, tandem) Y1
0
Axial load factor (single, tandem) Y2
0.87
Axial load factor (single, tandem) Y0
0.38
Radial load factor (single, tandem) X1
1
Radial load factor (single, tandem) X2
0.41
Radial load factor (single, tandem) X0
0.5
Axial load factor (back-to-back, face-to-face) Y1
0.92
Axial load factor (back-to-back, face-to-face) Y2
1.41
Axial load factor (back-to-back, face-to-face) Y0
0.76
Radial load factor (back-to-back, face-to-face) X1
1
Radial load factor (back-to-back, face-to-face) X2
0.67
Radial load factor (back-to-back, face-to-face) X0
1
Add to Enquiry
SKU: S71906 ACEGA/P4A-SKF Categories: , , , ,
SKF

Description

Properties

Contact type Normal contact (two-point contact)
Number of rows 1
Ring type One-piece inner and outer rings
Design High-speed E
Universal matching bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
Matched arrangement No
Matched condition (axial clearance/ preload) Measuring load, class A
Tolerance class P4A
Material, bearing Bearing steel
Coating Without
Sealing Seal on both sides
Sealing type Non-contact
Lubricant Grease

Logistics

Product net weight 0.051 kg
eClass code 23-05-08-04
UNSPSC code 31171531

(30X47X9) (S71906ACEGAP4A)

Additional information

Weight 0.051 kg
Size (mm)

Colour

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