SYJ 45 KF
Pillow block ball bearing unit with adapter sleeve locking, cast iron, Japanese standards
Pillow (plummer) block ball bearing units consist of an insert bearing mounted in a cast iron housing that can be bolted to a support surface.
This variant is suitable for applications with both constant and alternating directions of rotation. It is locked with an adapter sleeve, enabling quick and easy mounting onto the shaft. Adapter sleeve needs to be ordered separately.
- Strong
- Ready to mount
- Designed for a constant and alternating rotation
- Lubricated and sealed bearing
- Quick locking onto the shaft
- Cost-effective
Dimensions
| d |
40 mm
|
Bore diameter |
| d1 |
≈56.8 mm
|
Shoulder diameter of inner ring |
| d3 |
65 mm
|
Outside diameter of lock nut |
| A |
52 mm
|
Base width |
| A1 |
36 mm
|
Top width |
| B1 |
34.9 mm
|
Overall bearing width |
| B1 |
50 mm
|
Width of sleeve |
| H |
54 mm
|
Height of spherical seat centre |
| H1 |
20 mm
|
Foot height |
| H2 |
107.5 mm
|
Overall height |
| J |
143.5 mm
|
Distance between attachment bolts |
| J |
max.151 mm
|
Distance between attachment bolts |
| J |
min.136 mm
|
Distance between attachment bolts |
| L |
190 mm
|
Overall length |
| N |
17 mm
|
Diameter of attachment bolt hole |
| N1 |
24.5 mm
|
Length of attachment bolt hole |
| s1 |
28.75 mm
|
Distance from locking device side face to raceway centre |
|
Value specified for s1 is approximate and before the sleeve is driven into the bearing bore (sleeve and inner ring bore at starting position).
|
THREADED HOLE
| RG |
1/4-28 UNF
|
Housing thread for the grease fitting |
| R1 |
4 mm
|
Axial position of the housing thread |
| Rα |
45 °
|
Angular 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 |
174 mm
|
Distance of dowel pins |
| J7 |
18 mm
|
Axial offset of dowel pins |
| N4 |
4 mm
|
Recommended diameter for dowel pins |
Calculation data
| Basic dynamic load rating |
C |
33.2 kN
|
| Basic static load rating |
C0 |
21.6 kN
|
| Fatigue load limit |
Pu |
0.915 kN
|
| Limiting speed |
|
4 300 r/min
|
Mounting information
| Associated spanner |
|
HN 9
|
| Recommended lock nut tightening angle |
α |
110 °
|
| Recommended diameter for attachment bolts, mm |
G |
14 mm
|
| Recommended diameter for attachment bolts, inch |
G |
0.5625 in
|
