TBS® | HTHS Tapered Bearing Simulator Viscometer
High-Temperature, High Shear Rate Rotational Viscosity
ASTM D4683 | ASTM D6616
Reference technique for ASTM D4741 and D5481
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).
Developed in 1979 and under several patents, the TBS™ Viscometer became the world’s first high shear viscometer. It remains the modern benchmark ‘referee’ instrument for HTHS viscometry due to its innovative measurement technique, robust design, and notable operational upgrades.Through several noteworthy instrument advancements, the TBS® brings a heightened level of operator ease and productivity for both research and routine laboratory HTHS testing. These innovations include two optional Full-Automation modes, constant temperature control, a 12-step motor for simple adjustment of shear rate, quick ‘chase-flush’ sample exchange, and complete computer control for automatic calibration, sample injection and data reporting.
Features & Benefits
Package with 42-position AutoSampler – simply load samples, input desired sample
information, start the automation program, and return to retrieve results.
- The Full-Automation Manual Injection Package (with Laptop) incorporates specialized software for automated Rotor/Stator adjustments and instrument calibrations.
of analyzing both ‘fresh’ and ‘used’ oils.
sample testing with no requirement for duplication or averaging of sample data.
sample replacement technique – no cleaning solution injections between sample
temperature range from 40°C to 200°C with optional cooling device.
- Thin-Film Stator heating provides constant and precise temperature control with no
external hot oil bath.
research tool with broad shear rate range capability via 12 rotor speed
selections and Rotor/Stator depth relationship adjustment (50,000 to >7
Reference Oil sets available for operation at temperatures of 80°, 100° and 150°C.
- Applies a constant, linear shear rate profile continually to the fluid. An absolute viscometer where ‘true’ shear rate is calculated from known dimensions and speed of rotation. No need for shear rate correction or the possibility of erroneous results due to clogged capillaries.
|HTHS Newtonian Reference Oils||HTHS Non-Newtonian Reference Oils||Additional TBS Reference Oils|
|R-100||NNR-03 & RL 240||BIF-03 (Break-In Fluid)|
|R-200 & RL 241||NNR-10||Idling Oil|
|R-350 & RL 242|
|R-400 & RL 238|
|R-450 & RL 239|
For a complete listing of part numbers and available container sizes of TBS™ Reference Oils, please review the Tannas Reference Oils & Catalysts Parts List.
Visit our Certified Reference Materials page to download SDS sheets or Oil Certificates.
Parts & Accessories
Full Automation Package Option:
300140: Full Automation Package-T42C with
300192: TBS2010 F-2 Auto Software - Manual Injection
Spare Parts & Consumables:
300252: Conventional Rotor/Stator Set (Calibrated)
300288: Stator Housing Assembly w/Lids
300175: TBS® Shield Enclosure
300315: TBS® 2100E Siamese™ Collet Assembly
300319: Collett Assembly Tool
300263: RTD Assembly (Temperature Sensor)
300273: Thin-Film Heater Assembly
300949: Collet Shaft (5/pack)
300512: O-ring: Stator Housing (5/pack)
300520: O-ring: Stator Support (5/pack)
300514: Disposable AutoSampler Vials (50/pack)
300130: Reference Oil Bottle Set, Autosampler
300513: Disposable Syringe (20/pack)
300569: Glass Syringe
300547: Filter Holder
300548: Filter Paper (50/pack)
300124: AutoSampler Plastic Rack (Holds 21 Samples)
300493: Alignment Tool
Accessories for Low Temperature Operation:
300250: Recirculating Chiller
300253: Modified Rotor/Stator Set (Calibrated)
300289: Modified Stator Housing Assembly