BSA 204 CGA

Super Precision One-way Angular Contact Ball Thrust Bearings

These ultra-precision ball bearings achieve high running accuracy and are particularly suitable for screw drive equipment applications. They are also useful in other applications where safe radial and axial support is required, together with very precise axial guidance of the shaft. These bearings have high axial stiffness and can withstand unidirectional axial loads, high speeds and rapid accelerations.

  • High running accuracy
  • High axial stiffness
  • High unidirectional axial load carrying capacity
  • Universal pairing possible
  • Ideal for screw drive applications

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter20.0mm
Outer Diameter47.0mm
Thickness14.0mm
Contact angle62.0°

Performance

Basic dynamic load rating22.0kN
Basic rated static load49.0kN
Grease lubricated achievable speed9500.0r/min
Oil-air lubrication achievable speed12000.0r/min

Properties

Axial load capacity Unidirectional
Number of columns 1
Locating feature, bearing outer ring without
Cage non-metallic
Tolerance class Special
Materials, Bearings Bearing steel
Coated without
Sealing without
Relubrication Without

Logistics

Net weight0.11kg
eClass Code 23-05-08-03
UNSPSC Code 31171507

Technical Parameters

Technical Parameters

Size

d20.0mm Hole diameter
D47.0mm Outer diameter
H14.0mm Height
d1 min.29.42mm Retaining edge diameter
d234.5mm Retaining edge diameter
D129.1mm Retaining edge/groove diameter
D240.65mm Retaining edge/groove diameter
r1,21.0mm Chamfer size
a40.0mm Pressure point distance

Shoulder size

da min.24.0mm Shaft shoulder diameter
db min.24.0mm Shaft shoulder diameter
Da max.42.0mm Bearing housing shoulder diameter
Db max.42.0mm Bearing housing shoulder diameter
ra max.1.0mm Bearing housing chamfer radius

Data calculation

Basic dynamic load rating C 22kN
Basic static load ratingC0 49kN
Fatigue Load LimitPu1.8kN
Allowable speed for grease lubrication 9500r/min
Allowable speed for oil-air lubrication 12000r/min
Contact angle α 62°
Preload 1480N
Friction torque0.056N-m
Preload Class A axial stiffness (two bearings in back-to-back or face-to-face configuration) 680N/µm
Maximum basic axial load ratingFa14.5kN
Reference grease quantityGref1.2cm³

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