Unità cuscinetto a sfere021TUJ40
SUPPORTO SKF TUJ 40 TF UCT208
Unità cuscinetto a sfere
Description
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. Typically mounted in take-up frames, the unit has an inner ring extended on both sides and is locked by tightening a (set) screw on the inner ring, which makes it easy to mount.
- Designed for an alternating rotation
- Quick and easy to mount onto the shaft
- Accommodate static initial misalignment
- Long service life
- Reduced noise and vibration levels
Key data
Unità cuscinetto a sfere- Shaft diameter
- 40mm
- Basic dynamic load rating
- 30.7kN
- Fatigue load limit
- 0.8kN
- Shoulder diameter inner ring ≈
- 51.8mm
- Limiting speed
- 4,800r/min
- Basic static load rating
- 19kN
Item details
- Item
- 021TUJ40
- Category
- A.08
- Unit of measure
- PZ
Technical specifications
41 specifications · highlighted (yellow border): used as catalog filters
| Shaft diameter | 40mm |
|---|---|
| Housing overall width | 49 |
| Shoulder diameter inner ring ≈ | 51.8mm |
| Width of inner ring | 49.2mm |
| Hexagonal key size for set screw | 4 |
| Distance from locking device side face to raceway centre | 30.2 |
| Diameter of attachment bolt hole | 29 |
| Overall height | 115 |
| Distance from locking device side face to thread centre | 8 |
| Bore diameter | 40 |
| Bearing width, total | 49.2 |
| Hexagonal key size for the grease fitting | 7 |
| Diameter of head sphere of grease fitting | 6.5 |
| Basic dynamic load rating | 30.7kN |
|---|---|
| Fatigue load limit | 0.8kN |
| Limiting speed | 4,800r/min |
| Basic static load rating | 19kN |
| Recommended tightening torque for set screw | 6.5 |
| Housing type | Take-up |
|---|---|
| Material, housing | Cast iron |
| Retaining feature, inner ring | Set screws |
| Sealing, unit | Without |
| Grease fitting | With |
| Unit system | Metric |
| Lubricant | Grease |
| Coating | Without |
| Material, bearing | Bearing steel |
| Bore type | Cylindrical |
| Sealing type | Contact, standard |
| Rubber seating ring | Without |
| Note | Limiting speed with shaft tolerance h6 |
| Set screw | M8x1 |
| Sealing type, bearing | Contact, standard |
| Purpose specific | For material handling applications |
| Relubrication hole | With |
| Sealing, bearing | Seal and flinger on both sides |
| Thread of grease fitting | 1/4-28 SAE-LT |
| Axial position of the housing thread | 4 |
| UNSPSC code | 31171536 |
|---|---|
| EClass code | 23-05-16-02 |
| Compliance with standard | JIS |