FY 1.1/4 FM
Square flanged ball bearing unit with eccentric locking, cast iron housing, ISO
These square flanged ball bearing units are compliant with ISO standards.
They consist of an insert bearing, with a narrow inner ring and eccentric locking, and are intended primarily for use in applications where the direction of rotation is constant. The bearing is mounted in a cast iron housing, which can be bolted to a machine wall or frame. Ball bearing units can accommodate moderate initial misalignment, but normally do not permit axial displacement.
- Resist high levels of contamination
- Designed for high temperatures and speeds
- Accommodate relatively heavy loads
- Cost-effective
Dimensions
d |
31.75 mm
|
Bore diameter |
d1 |
≈46.1 mm
|
Outer diameter of inner ring |
d2 |
51.1 mm
|
Outside diameter of locking ring |
A |
34.5 mm
|
Width of housing |
A1 |
13 mm
|
Flange width |
A3 |
3.2 mm
|
Depth of centring recess |
A5 |
24.5 mm
|
Standout of end cover |
B |
25.4 mm
|
Width of inner ring |
B1 |
38.9 mm
|
Overall bearing width |
B4 |
6.75 mm
|
Distance from locking device side face to thread centre |
Db1 |
87 mm
|
Top external diameter |
Db2 |
95 mm
|
Base external diameter |
Dc |
106.4 mm
|
Diameter of housing centering recess |
J |
92 mm
|
Distance between attachment bolts |
L |
118 mm
|
Overall length |
N |
14 mm
|
Diameter of attachment bolt hole |
s1 |
29.4 mm
|
Distance from locking device side face to raceway centre |
T |
50.4 mm
|
Overall width |
THREADED HOLE
RG |
1/4-28 UNF
|
Housing thread for grease fitting |
R1 |
22.5 mm
|
Axial position of the housing thread |
GREASE FITTING
DN |
6.5 mm
|
Diameter of head sphere of grease fitting |
SWN |
7 mm
|
Hexagonal key size for the grease fitting |
GN |
1/4-28 SAE-LT
|
Thread of grease fitting |
DOWEL PINS
J6 |
106 mm
|
Distance of dowel pins |
J7 |
29 mm
|
Axial offset of dowel pins |
N4 |
4 mm
|
Recommended diameter for dowel pins |
Calculation data
Basic dynamic load rating |
C |
25.5 kN
|
Basic static load rating |
C0 |
15.3 kN
|
Fatigue load limit |
Pu |
0.655 kN
|
Limiting speed |
|
5 300 r/min
|
|
|
Limiting speed with shaft tolerance h6
|
Mounting information
Set screw |
G2 |
3/8-24 UNF
|
Hexagonal key size for set screw |
|
4.763 mm
|
Recommended tightening torque for set screw |
|
16.5 N·m
|
Recommended diameter for attachment bolts, mm |
G |
12 mm
|
Recommended diameter for attachment bolts, inch |
G |
0.5 in
|