Cojinetes del turbocompresor
Los sistemas modernos de cojinetes turbo pueden clasificarse en dos tipos: sistemas de cojinetes hidrodinámicos y sistemas de cojinetes de bolas.
Los sistemas hidrodinámicos utilizan aceite de motor para lubricar y controlar el movimiento del eje, con opciones de dos cojinetes de deslizamiento totalmente flotantes o un cojinete semiflotante de una pieza. También se incorporan cojinetes de empuje para el control axial.
Los sistemas de rodamientos de bolas combinan cojinetes de deslizamiento y de empuje para mejorar el rendimiento, con menores holguras y menores pérdidas de potencia.
LISTA DE PRODUCTOS
| Foto | Número de pieza | Bore Dia (d1) | Bore Dia (d2) | Diámetro exterior | Anchura | Material del anillo interior | Outer Ring Material | Material de la bola | Material del retenedor | Velocidad máxima (RPM) | Temperatura | Aplicación |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
LILYTB005 | 6 mm | 5.2 mm | 18 mm | 34.20 mm | GCr15 Acero | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (Black Phosphated ) | 150000 | -60 to 500 ℃ | GT17,GT20,GT25 |
 |
LILYTB009 | 6.5 mm | 6.4 mm | 20.4 mm | 36.7 mm | GCr15 Acero | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (Black Phosphated ) | 150000 | -60 to 500 ℃ | General |
 |
LILYTB001 | 8 mm | 8.8 mm | 22 mm | 53.73 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (Black Phosphated ) | 150000 | -60 to 500 ℃ | GT25R.28R.30R.35R GT28,GT30,GT35 |
 |
LILYTB002 | 8 mm | 8.8 mm | 22 mm | 42.50 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 150000 | -60 to 500 ℃ | GT25R.28R.30R.35R |
 |
LILYTB007 | 8 mm | 8.8 mm | 22 mm | 41.95 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 150000 | -60 to 500 ℃ | GT25R,GT28R,GT30R,GT35R |
 |
LILYTB004 | 10 mm | 10.2 mm | 28.2 mm | 55.20 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 150000 | -60 to 500 ℃ | GT/GTX37/40 GT/GTX42/45 GT37,GT40,GT42,GT45 |
 |
LILYTB008 | 10 mm | 10.8 mm | 28.2 mm | 44.55 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 100000 | -60 to 500 ℃ | GTX37,GTX40,GTX42,GTX45 |
 |
LILYTB003 | 10.2 mm | 10 mm | 28.2 mm | 55.20 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 150000 | -60 to 500 ℃ | GT25R.28R.30R.35R |
 |
LILYTB006 | 13 mm | 13.2 mm | 34.8 mm | 64.08 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 80000 | -60 to 500 ℃ | GT42,GT45 |
 |
LILYTB016 | 16 mm | 16.8 mm | 44.09 mm | 68.15 mm | Acero M50 | GCr15 Acero | Nitruro de silicio(Si3N4) | Metal (plateado) | 80000 | -60 to 500 ℃ | GTX5533R |
Product Comparison(Journal Vs Ball)
Shorter
(lubrication-dependent)
Low initial cost,high maintenance
Alta
(sliding friction)
Arranque lento
(high static friction)
Poor
(desgaste del casquillo)
Limitado
(<=120℃)
Moderado
(vibration/noise-prone)
Longer
(anti-fatigue materials)
High initial cost,low maintenance
BAJA
(rolling friction)
Fast start-up
(low friction)
Excellent
(high-carbon steel/ceramic)
Alta
(<=300℃)
Alta
(precision.low noise)
Respuesta de velocidad cuando se abre repentinamente el acelerador a 2000 rpm (motor S.I. de 2 litros)
According to Garret who is 1st introducir el rodamiento de bolas en el turbocompresor,algunos conductores profesionales de motores turboalimentados Garrett con rodamiento de bolas afirman que se sienten como si condujeran un gran motor de aspiración normal.
The development of ball bearing turbochargers has been driven by the pursuit of drivability and better emissions.
Turbocharger Ball Bearing(TCBB)
Bearings work at high temperatures in an exhaust gas turbocharger environment
High speed of 120,000 to 200,000 rpm, or even higher
Smooth operation and small axial movement
Lean oil lubrication during engine start & stop
Applied in performance cars for rapid acceleration and deceleration
Engine oil provides cooling lubrication
Mainstream alloy steel
Special heat treatment enables the bearing to maintain good performance at high temperatures
Double angular contact ball bearings with ceramic balls
PEEK/metal cages to meet different applications
High-precision
Jaula
PEEK/Steel Cage, coating available for different application, improved oil-deprived condition performance.
Si3N4 Ceramic ball
Better at wear resistant and high revolution
Special HT for bearing rings
Enables grain refinement, maintains initial accuracy capability.
PEEK/black coating/silver plating cage optional
