Unità cuscinetto a sfere021FYJ25
SUPPORTO SKF FYJ 25 TF - UCF205
Unità cuscinetto a sfere
Description
These square flanged ball bearing units are compliant with Japanese Industrial Standards (JIS). They consist of an insert bearing, with an extended inner ring and set screw locking, and are suitable for applications where the direction of rotation is constant or alternating. 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
Key data
Unità cuscinetto a sfere- Shaft diameter
- 25mm
- Basic dynamic load rating
- 14kN
- Fatigue load limit
- 0.335kN
- Limiting speed
- 7,000r/min
- Basic static load rating
- 7.8kN
- Width, total
- 35.8mm
Item details
- Item
- 021FYJ25
- Category
- A.08
- Unit of measure
- PZ
Technical specifications
61 specifications · highlighted (yellow border): used as catalog filters
| Shaft diameter | 25mm |
|---|---|
| Centre distance between bolt holes | 70 |
| Attachment bolt diameter | 10 |
| Housing overall width | 27 |
| Width, total | 35.8mm |
| Outer diameter of inner ring ≈ | 33.74mm |
| Width of inner ring | 34.1mm |
| Overall width | 35.8 |
| Recommended diameter for attachment bolts, inch | 0.375 |
| Recommended diameter for attachment bolts, mm | 10 |
| Hexagonal key size for set screw | 3 |
| Distance from locking device side face to raceway centre | 19.8 |
| Diameter of attachment bolt hole | 12 |
| Overall length | 95 |
| Diameter of housing centering recess | 74.6 |
| Distance from locking device side face to thread centre | 5 |
| Overall bearing width | 34.1 |
| Flange width | 12 |
| Width of housing | 27 |
| Bore diameter | 25 |
| Bearing width, total | 34.1 |
| Recommended diameter for dowel pins | 4 |
| Distance of dowel pins | 83 |
| Hexagonal key size for the grease fitting | 7 |
| Diameter of head sphere of grease fitting | 6.5 |
| Base external diameter | 72 |
| Top external diameter | 66 |
| Basic dynamic load rating | 14kN |
|---|---|
| Fatigue load limit | 0.335kN |
| Limiting speed | 7,000r/min |
| Basic static load rating | 7.8kN |
| Recommended tightening torque for set screw | 4 |
| Housing type | Flanged |
|---|---|
| Flanged housing type | Square |
| Material, housing | Cast iron |
| Number of bolt holes for fasteners | 4 |
| 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 | M6x0.75 |
| Sealing type, bearing | Contact, standard |
| Purpose specific | For material handling applications |
| Relubrication hole | With |
| Sealing, bearing | Seal and flinger on both sides |
| Fastening bolt hole type | Plain |
| Thread of grease fitting | 1/4-28 SAE-LT |
| Axial offset of dowel pins | 19 |
| Axial position of the housing thread | 18.5 |
| Housing thread for grease fitting | 1/4-28 UNF |
| Depth of centring recess | 3.2 |
| UNSPSC code | 31171536 |
|---|---|
| EClass code | 23-05-16-02 |
| Compliance with standard | JIS |