FY 1. 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 |
25.4 mm
|
Bore diameter |
| d1 |
≈33.74 mm
|
Outer diameter of inner ring |
| d2 |
37.4 mm
|
Outside diameter of locking ring |
| A |
30 mm
|
Width of housing |
| A1 |
12 mm
|
Flange width |
| A3 |
3.2 mm
|
Depth of centring recess |
| A5 |
20.5 mm
|
Standout of end cover |
| B |
21.5 mm
|
Width of inner ring |
| B1 |
31 mm
|
Overall bearing width |
| B4 |
4.75 mm
|
Distance from locking device side face to thread centre |
| Db1 |
65 mm
|
Top external diameter |
| Db2 |
71 mm
|
Base external diameter |
| Dc |
74.6 mm
|
Diameter of housing centering recess |
| J |
70 mm
|
Distance between attachment bolts |
| L |
95 mm
|
Overall length |
| N |
11.5 mm
|
Diameter of attachment bolt hole |
| s1 |
23.5 mm
|
Distance from locking device side face to raceway centre |
| T |
42.5 mm
|
Overall width |
THREADED HOLE
| RG |
1/4-28 UNF
|
Housing thread for grease fitting |
| R1 |
21 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 |
83 mm
|
Distance of dowel pins |
| J7 |
19 mm
|
Axial offset of dowel pins |
| N4 |
4 mm
|
Recommended diameter for dowel pins |
Calculation data
| Basic dynamic load rating |
C |
14 kN
|
| Basic static load rating |
C0 |
7.8 kN
|
| Fatigue load limit |
Pu |
0.335 kN
|
| Limiting speed |
|
7 000 r/min
|
|
|
Limiting speed with shaft tolerance h6
|
Mounting information
| Set screw |
G2 |
1/4-28 UNF
|
| Hexagonal key size for set screw |
|
3.175 mm
|
| Recommended tightening torque for set screw |
|
4 N·m
|
| Recommended diameter for attachment bolts, mm |
G |
10 mm
|
| Recommended diameter for attachment bolts, inch |
G |
0.375 in
|
