S71906/VA9D1

Super-precision universally matchable single row angular contact ball bearing with seals for driven tools

These super-precision, high-capacity, 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.

Being universally matchable, they can be used together in arrangements to provide effective load sharing, within a predetermined preload range, without the use of shims or similar devices.

  • Suitable for driven tools
  • High axial and radial load carrying capacity
  • High degree of stiffness
  • Low noise and vibration levels
  • 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
35.6 mm
 Shoulder diameter of inner ring (large side face)
d2
35.6 mm
 Shoulder diameter of inner ring (small side face)
D2
44.15 mm
 Recess diameter of outer ring (large side face)
r1,2
min.0.3 mm
 Chamfer dimension
r3,4
min.0.2 mm
 Chamfer dimension
a
13.6 mm
 Distance from side face to pressure point
Abutment dimensions - S71906/VA9D1

Abutment dimensions

da
min.32 mm
 Diameter of shaft abutment
da
max.35.1 mm
 Diameter of shaft abutment
db
min.32 mm
 Diameter of shaft abutment
db
max.35.1 mm
 Diameter of shaft abutment
Da
max.45 mm
 Diameter of housing abutment
Db
max.45.6 mm
 Diameter of housing abutment
ra
max.0.3 mm
 Radius of fillet
rb
max.0.2 mm
 Radius of fillet

Calculation data

Basic dynamic load rating C
6.76 kN
Basic static load rating C0
4.3 kN
Fatigue load limit Pu
0.183 kN
Attainable speed for grease lubrication
20 000 r/min
Contact angle α
25 °
Ball diameter Dw
4.762 mm
Number of rows i
1
Number of balls (per bearing) z
20
Preload and stiffness (back-to-back, face-to-face)
Preload when unmounted G
80 N
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.08
Correction factor dependent on contact angle f1
0.98
Correction factor, preload class B f2B
1.04
Factors for equivalent bearing load calculation
Limiting value e
0.68
Additional factors for equivalent loads
Refer to Notes 1 and 2 below
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/VA9D1-SKF Categories: , , , ,
SKF

Description

Properties

Contact type Normal contact (two-point contact)
Number of rows 1
Ring type One-piece inner and outer rings
Universal matching bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
Matched arrangement No
Matched condition (axial clearance/ preload) Not applicable
Tolerance class P4
Material, bearing Bearing steel
Coating Without
Sealing Seal on both sides
Sealing type Non-contact
Lubricant Grease
Special feature Suitable for driven tools

Logistics

Product net weight 0.05 kg
eClass code 23-05-08-04
UNSPSC code 31171531

(30X47X9) (S71906VA9D1)

Additional information

Weight 0.05 kg
Size (mm)

Colour

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