Angular Contact Ball Bearings1

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Angular Contact Ball Bearings1

Angular Contact Ball Bearings1



Angular Contact Ball Bearings is divided into angular contact ball bearings, double row angular contact ball bearings and four point contact ball bearings. It can bear radial and axial loads at the same time and can bear pure axial load as well with higher limiting speeds. The capability of bearing axial load is determined by the degree of contact angle. The bigger the contact angle is, and the bigger the axial load can be born. The bearings should be used in pair in general, in connection with installation in pairs, there are three kinds of ways, back to back, face to face and in series.
The Meaning of Suffix


　

　

　

　

　

　

1. Design

2. Clearance

3. Cage Design

A

Non-filling slot (Conrad type -

C2

Axial clearance tighter

J

Pressed steel cage, ball

　

3000, 5000 series) MRC. C.


than normal (3000,5000


centred.

B

40° contact angle


and QJ series)

M

Machined brass cage, ball

BE

40° contact angle, high

C3

Axial clearance greater than


centred

　

capacity, all ISO corners


normal (3000, 5000 and QJ

P

Fibreglass reinforced

D

Split inner ring (3300 series)


series)


polyamide,ball centred

D

MRC 29° contact angle, 1/2 pair,

7000 Series clearance*

Y

Press brass cage

　

duplex

CA

Modified for duplex mounting

4. Special Features

DU

MRC 29° contact angle and


with axial clearance < normal

HC4

Full ceramic bearing

　

ground for duplex mounting and

CB

Modified for duplex mounting

HC5

Ceramic ball set

　

zero preload/ clearance


with normal axial clearance

5. Lubrication

E

Filling slot (Max type - 5000

CC

Modified for duplex mounting

MT33

Medium temperature Lithium

　

series) MRC. M.


with axial clearance > normal


grease, 74 cSt @ 40°C,

FF

2 Shields on MRC DRACBB

CN

Normal clearance (3000, 5000


range -30°C to + 120°C

NR

Snap ring (3300,5000 series)


series) no symbol shown

GJN

Di-urea hi-temp, 115cSt

N2

Locating slot (QJ Series)

GA

Modified for duplex mounting


@ 40°C, range -40°C to +150°C

R

MRC single row with 15° contact


with light preload


　

　

angle

GB

Modified for duplex mounting


　

RD

MRC single row for duplex


with medium preload


　

　

mounting and 15° contact angle

GC

Modified for duplex mounting


　

2RS1

Rubber seals on both sides


with heavy preload


　

ZZ

2 rubber seals on MRC DRACBB

G…

Special preload, value in daN


　

2Z

Metal shields on both sides

*If the above symbols from CA to G.. are


　

　

(5000 series)

not shown the bearing is not modified for


　

　


duplex mounting