S7211 CDGA/P4A

Super-precision, high-capacity, universally matchable single row angular contact ball bearing with seals

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.

They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures. 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
  • Very high load carrying capacity
  • Universally matchable
  • Non-contact seals
  • Integral sealing prolongs bearing service life

Dimensions

d
55 mm
 Bore diameter
D
100 mm
 Outside diameter
B
21 mm
 Width
d1
68.9 mm
 Shoulder diameter of inner ring (large side face)
d2
68.9 mm
 Shoulder diameter of inner ring (small side face)
D2
89.1 mm
 Recess diameter of outer ring (large side face)
r1,2
min.1.5 mm
 Chamfer dimension
r3,4
min.0.6 mm
 Chamfer dimension
a
21 mm
 Distance from side face to pressure point
Abutment dimensions - S7211 CDGA/P4A

Abutment dimensions

da
min.64 mm
 Diameter of shaft abutment
da
max.68.1 mm
 Diameter of shaft abutment
db
min.64 mm
 Diameter of shaft abutment
db
max.68.1 mm
 Diameter of shaft abutment
Da
max.91 mm
 Diameter of housing abutment
Db
max.95.8 mm
 Diameter of housing abutment
ra
max.1.5 mm
 Radius of fillet
rb
max.0.6 mm
 Radius of fillet

Calculation data

Basic dynamic load rating C
55.3 kN
Basic static load rating C0
43 kN
Fatigue load limit Pu
1.8 kN
Attainable speeds
Refer to catalogue data or contact SKF for the attainable speeds
Contact angle α
15 °
Ball diameter Dw
14.288 mm
Number of rows i
1
Number of balls (per bearing) z
15
Preload and stiffness (back-to-back, face-to-face)
Preload class
A
Preload when unmounted G
210 N
Axial stiffness
72 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
1
Correction factor, preload class A f2A
1
Correction factor for hybrid bearings fHC
1
Factors for equivalent bearing load calculation
Calculation factor for equivalent loads f0
14.5
Add to Enquiry
SKU: S7211 CDGA/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-capacity D
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
Indicative product carbon footprint to manufacture 2.2 kg CO2e

Logistics

Product net weight 0.612 kg
eClass code 23-05-08-04
UNSPSC code 31171531

(55X100X21) (S7211CDGAP4A)

Additional information

Weight 0.612 kg
Size (mm)

Colour

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