BSD2047CGA Ultra-precision Unidirectional Angular Contact Thrust Ball Bearings For Lead Screw Drive
BSD2047CGA bearings belong to the ultra-precision unidirectional angular contact thrust ball bearings for lead screw drives
Inner diameter: 20 mm
Outer diameter: 47 mm
Height: 15 mm
Bearing diameter - minimum side: 29.4 mm
Diameter of the shoulder of the ring - maximum side: 34.5 mm
Diameter of the shoulder of the seat - maximum side: 34.6 mm
Diameter of the shoulder of the seat - minimum side: 40.65 mm
Chamfer size (min.): 1 mm
Distance from the pressure point: 40 mm.
Prefix list: [BSD: ultra-precision unidirectional thrust angular contact ball bearings for lead screw transmission].
Suffix list: [C: Improved internal design] [G: Universal pairing] [A: Slight preload].
BSD2047CGA Bearing designation
BSD2047CGA Bearing Dimension
| Inner diameter | d | 20mm |
| Outer diameter | D | 47mm |
| Height | H | 15mm |
| Diameter of the shoulder of the collar - min side | d₁ | 29.4mm |
| Diameter of the shoulder of the collar - max side | d₂ | 34.5mm |
| Seat shoulder diameter - max side | D₁ | 34.6mm |
| Seat shoulder diameter - min side | D₂ | 40.65mm |
| Chamfer size | r₁,₂ min. | 1mm |
| Distance from pressure point | a | 40mm |
BSD2047CGABearing Shoulder Dimension
| Shaft shoulder diameter | dₐ min. | 27mm |
| Shaft shoulder diameter | db min. | 27mm |
| Bearing housings shoulder diameter | Dₐ max. | 42.5mm |
| Bearing housings shoulder diameter | Db max. | 42.5mm |
| Chamfer radius | rₐ max. | 1mm |
BSD2047CGABearing data calculations
| Basic rated dynamic load | 22kN |
| Basic static load rating | 49kN |
| Fatigue load limits | 1.8kN |
| Grease lubrication up to speed | 9000r/min |
| The oil-air lubrication method can reach the rotational speed | 12000r/min |
| Contact angle | 62° |
| Preload class A | 1480N |
| Frictional moment, preload class A | 0.05Nm |
| Static axial stiffness of the preload A | 680N/µm |
| Axial maximum basic load rating | 14.5kN |
| Reference grease amount | 1.4cm³ |
BSD2047CGA Bearing Quality
| Bearing Weight | 0.13kg |
BSD2047CGA Bearing Dimension Drawing
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