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. The units are locked with an adapter sleeve, enabling quick and easy mounting onto the shaft. This permits the full limiting speed to be achieved, even where using commercial-grade shafts. The adapter sleeve needs to be ordered separately.
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Order adapter sleeve separately
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| Compliance with standard |
JIS
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| Purpose specific |
For material handling applications
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| Material, housing |
Cast iron
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| Sealing, bearing |
Seal and flinger on both sides
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| Sealing type, bearing |
Contact, standard
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| Sealing, unit |
Optional end cover
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| Coating |
Without
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| d |
25 mm
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Bore diameter |
|---|---|---|
| d1 |
≈ 39.7 mm
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Shoulder diameter of inner ring |
| d3 |
45 mm
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Outside diameter of lock nut |
| A |
37 mm
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Overall width |
| A1 |
12 mm
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Width of piloting groove |
| A2 |
28 mm
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Width of flange in which piloting grooves are provided |
| A5 |
22.5 mm
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Standout of end cover |
| B1 |
38 mm
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Width of sleeve |
| H |
102 mm
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Overall height |
| H1 |
89 mm
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Distance between bottoms of piloting grooves |
| H2 |
56 mm
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Height of attachment end |
| L |
113 mm
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Overall length |
| L1 |
70 mm
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Distance from attachment end face to centre line of spherical seat diameter |
| L2 |
10 mm
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Length attachment end |
| L3 |
57 mm
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Length of piloting groove |
| N |
22 mm
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Diameter of attachment bolt hole |
| N1 |
16 mm
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Length of attachment slot |
| N2 |
37.5 mm
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Height of attachment slot |
| s1 |
22.25 mm
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Distance from locking device side face to raceway centre |
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Value specified for s1 is approximate and before the sleeve is driven into the bearing bore (sleeve and inner ring bore at starting position).
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| RG |
1/4-28 UNF
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Housing thread for the grease fitting |
|---|---|---|
| R1 |
2.5 mm
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Axial position of the housing thread |
| Rα |
30 °
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Angular position of the housing thread |
| DN |
6.6 mm
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Diameter of head sphere of grease fitting |
|---|---|---|
| SWN |
7.94 mm
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Hexagonal key size for the grease fitting |
| GN |
1/4-28 UNF
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Thread of grease fitting |
| Basic dynamic load rating | C |
19.5 kN
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|---|---|---|
| Basic static load rating | C0 |
11.2 kN
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| Fatigue load limit | Pu |
0.475 kN
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| Limiting speed |
5 000 r/min
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| Mass bearing unit |
1.2 kg
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| Associated spanner |
HN 6
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| Recommended lock nut tightening angle | α |
95 °
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