Take-up ball bearing units, consisting of an insert bearing based on a sealed deep groove ball bearing mounted in a grey cast iron housing. This variant is intended for use in applications where the direction of rotation is constant. It has an inner ring extended on one side, with an eccentric locking collar, enabling quick and easy mounting onto the shaft.
| Compliance with standard |
ISO
|
| Purpose specific |
For material handling applications
|
| Material, housing |
Cast iron
|
| Sealing, bearing |
Seal on both sides
|
| Sealing type, bearing |
Contact, standard
|
| Sealing, unit |
Optional end cover
|
| Coating |
Without
|
| d |
55 mm
|
Bore diameter |
|---|---|---|
| d1 |
≈ 69.06 mm
|
Shoulder diameter of inner ring |
| d2 |
74.5 mm
|
Outside diameter of locking ring |
| A |
64 mm
|
Overall width |
| A1 |
27 mm
|
Width of piloting groove |
| A2 |
41 mm
|
Width of flange in which piloting grooves are provided |
| A5 |
33.5 mm
|
Standout of end cover |
| B1 |
48.4 mm
|
Overall bearing width |
| B4 |
7.9 mm
|
Distance from locking device side face to thread centre |
| H |
146 mm
|
Overall height |
| H1 |
130 mm
|
Distance between bottoms of piloting grooves |
| H2 |
102 mm
|
Height of attachment end |
| L |
171 mm
|
Overall length |
| L1 |
106 mm
|
Distance from attachment end face to centre line of spherical seat diameter |
| L2 |
19 mm
|
Length attachment end |
| L3 |
95 mm
|
Length of piloting groove |
| N |
35 mm
|
Diameter of attachment bolt hole |
| N1 |
25 mm
|
Length of attachment slot |
| N2 |
64 mm
|
Height of attachment slot |
| s1 |
35.9 mm
|
Distance from locking device side face to raceway centre |
| RG |
1/4-28 UNF
|
Housing thread for the grease fitting |
|---|---|---|
| R1 |
5 mm
|
Axial position of the housing thread |
| Rα |
30 °
|
Angular position of the housing thread |
| 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 |
| Basic dynamic load rating | C |
43.6 kN
|
|---|---|---|
| Basic static load rating | C0 |
29 kN
|
| Fatigue load limit | Pu |
1.25 kN
|
| Limiting speed |
3 600 r/min
|
|
|
Limiting speed with shaft tolerance h6
|
| Mass bearing unit |
3.9 kg
|
| Set screw | G2 |
M10x1
|
|---|---|---|
| Hexagonal key size for set screw |
5 mm
|
|
| Recommended tightening torque for set screw |
16.5 N·m
|
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