Page 179 - Rollingbearings

Provisions for mounting and dismounting
Table 22
Recommended dimensions for oil supply ducts and distribution grooves
L
L
3
b a
r a
h a

N

Seat diameter Dimensions
> ≤ b a h a r a N

mm mm

– 100 3 0,5 2,5 2,5
100 150 4 0,8 3 3
150 200 4 0,8 3 3

200 250 5 1 4 4
250 300 5 1 4 4
300 400 6 1,25 4,5 5
400 500 7 1,5 5 5
500 650 8 1,5 6 6
650 800 10 2 7 7
800 1 000 12 2,5 8 8

L = width of bearing seat
Bearing interfaces
Table 23
Design and recommended dimensions for threaded holes for connecting oil supply

60°

B.6
N a G a N a G a

G c
G c
G b
G b
Design A Design B

Thread Design Dimensions
G a G b G 1) N a
c
max
– – mm

M6 A 10 8 3
G 1/8 A 12 10 3
G 1/4 A 15 12 5
G 3/8 B 15 12 8
G 1/2 B 18 14 8
G 3/4 B 20 16 8

1) Effective threaded length

177