Unità cuscinetto a sfere021FYV20FM
SUPPORTO SKF FY 20 FM (PCJ)
Unità cuscinetto a sfere
Description
These square flanged ball bearing units are compliant with ISO standards. They consist of an insert bearing, with a narrow inner ring and eccentric locking, and are intended primarily for use in applications where the direction of rotation is constant. 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
- 20mm
- Basic dynamic load rating
- 12.7kN
- Fatigue load limit
- 0.28kN
- Limiting speed
- 8,500r/min
- Basic static load rating
- 6.55kN
- Width, total
- 43mm
Item details
- Item
- 021FYV20FM
- Category
- A.08
- Unit of measure
- PZ
Technical specifications
62 specifications · highlighted (yellow border): used as catalog filters
| Shaft diameter | 20mm |
|---|---|
| Centre distance between bolt holes | 63.5 |
| Attachment bolt diameter | 10 |
| Housing overall width | 29.5 |
| Width, total | 43mm |
| Outer diameter of inner ring ≈ | 28.2mm |
| Width of inner ring | 21mm |
| Overall width | 43 |
| 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 | 23.5 |
| Diameter of attachment bolt hole | 11.5 |
| Overall length | 86 |
| Diameter of housing centering recess | 68.3 |
| Distance from locking device side face to thread centre | 4.75 |
| Overall bearing width | 30.5 |
| Flange width | 11 |
| Width of housing | 29.5 |
| Bore diameter | 20 |
| Bearing width, total | 30.5 |
| Recommended diameter for dowel pins | 4 |
| Distance of dowel pins | 74 |
| Hexagonal key size for the grease fitting | 7 |
| Diameter of head sphere of grease fitting | 6.5 |
| Base external diameter | 63 |
| Top external diameter | 57 |
| Basic dynamic load rating | 12.7kN |
|---|---|
| Fatigue load limit | 0.28kN |
| Limiting speed | 8,500r/min |
| Basic static load rating | 6.55kN |
| 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 | Eccentric collar |
| Sealing, unit | Optional end cover |
| 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 on both sides |
| Fastening bolt hole type | Plain |
| Standout of end cover | 20.5 |
| Thread of grease fitting | 1/4-28 SAE-LT |
| Axial offset of dowel pins | 16 |
| Axial position of the housing thread | 20.5 |
| Housing thread for grease fitting | 1/4-28 UNF |
| Depth of centring recess | 3.2 |
| UNSPSC code | 31171536 |
|---|---|
| EClass code | 23-05-08-02 |
| Compliance with standard | ISO |