The Tapered Bearing Simulator (TBS®) Viscometer is a rotational viscometer for measuring high temperature, high shear rate (HTHS) viscosity of engine oils over a broad shear rate (50,000 to >7 million sec–1) and temperature range (40°C to 200°C).
Orbis BV
TBS® HTHS Viscometer
TBS® HTHS Viscometer
The Tapered Bearing Simulator (TBS®) Viscometer is a rotational viscometer for measuring high temperature, high shear rate (HTHS) viscosity of engine oils over a broad shear rate (50,000 to >7 million sec–1) and temperature range (40°C to 200°C).
| Brand | |
|---|---|
| Test type | |
| Sample type | |
| Methods | ASTM D4683, ASTM D4741, ASTM D5481, ASTM D6616, CEC L-36-A90, IP 370, JPI-5S-36-03 |





