7008 CD/P4ATBTAMatched set of three super-precision, high-capacity, D design, single row angular contact ball bearings

SKU: 7008 CD/P4ATBTAMatched set of three super-precision, high-capacity, D design, single row angular c

These sets of three matched super-precision angular contact ball bearings are available as universally matchable bearings or as preconfigured arrangements. Sets arranged in back-to-back and tandem, or face-to-face and tandem, are available in different preload classes and correct mounting results in preload within a predetermined range, without the need for shims or similar devices. Sets of three bearings paired in tandem need to be mounted against a single bearing, or another set of bearings in tandem, to achieve the desired preload. The bore and outside diameters of the bearings are matched to within a maximum of one-third of the permitted diameter tolerance, to provide better load distribution than single universally matchable bearings.

ID:140189

Universal matching bearing(s)
No

Dimensions - 7008 CD/P4ATBTA

Dimensions

d
40 mm
Bore diameter
D
68 mm
Outside diameter
B
45 mm
Width
d1
49.2 mm
Shoulder diameter of inner ring (large side face)
r1,2
min. 1 mm
Chamfer dimension
r3,4
min. 0.3 mm
Chamfer dimension

Abutment dimensions - 7008 CD/P4ATBTAAbutment dimensions - 7008 CD/P4ATBTA

Abutment dimensions

da
min. 44.6 mm
Diameter of shaft abutment
Db
max. 66 mm
Diameter of housing abutment
ra
max. 1 mm
Radius of fillet
rb
max. 0.3 mm
Radius of fillet
dn
50.8 mm
Position of oil nozzle

Calculation data

Basic dynamic load rating C
36 400 N
Basic static load rating C0
32 500 N
Fatigue load limit Pu
1 400 N
Attainable speeds
Contact SKF for the attainable speeds
Contact angle α
15 °
Ball diameter Dw
7.938 mm
Number of rows i
3
Number of balls (per bearing) z
18
Reference grease quantity (per bearing) Gref
2.4 cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class
A
Preload G
81 N
Axial stiffness
55.1 N/µm
Correction factors for preload calculation
Correction factor dependent on bearing series and size f
1.06
Correction factor dependent on contact angle f1
1
Correction factor, preload class A f2A
1
Correction factor for hybrid bearings fHC
1

Mass

Mass
0.58 kg

Reviews

There are no reviews yet.

Be the first to review “7008 CD/P4ATBTAMatched set of three super-precision, high-capacity, D design, single row angular contact ball bearings”

Your email address will not be published. Required fields are marked *