K18860 Low Temperature Torque Test Apparatus

Test Method
Significant for the design and specification of greases for low temperature service, the low temperature torque test measures the extent to which a grease sample retards rotation of a bearing assembly at the test temperature.

Features and Benefits
• Digital torque indication for two samples

• Choice of test rig combinations

• Mechanically refrigerated, with standard –65°F (–54°C) operating range

• Optional cooling range to –100°F (–73°C)

• Optional strip chart recorder or data acquisition software

• Conforms to ASTM D1478, D4693 and D4950 specifications

• Data acquisition software available


Click on the image to view a larger photo of the instrument.

K18860 Low Temperature Torque Test Apparatus
Refrigerated two unit apparatus for ASTM low temperature torque tests on lubricating greases. Includes an insulated, thermostatically controlled air chamber with test rigs, drive shafts and externally mounted gear motors. Rotates drive shafts at 1rpm while electronic load cell-strain gauge indicators measure the torque required to restrain the test rigs. Digital LED displays indicate torque for each drive unit and cold chamber temperature. On ASTM D4693 models, spindle temperature is also indicated for each drive unit. An optional factory installed strip chart recorder provides a hard copy record of starting torque, running torque and maximum torque. Includes drive shaft overtorque protection—when drive shaft torque exceeds a preset value, the drive motors automatically shut down to prevent breakage of shaft insulators. Standard cooling range of –65°F (–54°C) meets ASTM requirements for D1478 and D4693 test methods. Optional –100°F (–73°C) range is available for special testing requirements.

ASTM D1478 Model for Ball Bearing Greases – Equipped with two test cages and two 6204 ball bearings per ASTM D1478 specifications.

ASTM D4693 Model for Automotive Wheel Bearing Greases – Equipped with two spring loaded spindle-bearings-hub assemblies, bearing packer assembly and bearing installation and removal tools.

Combined ASTM D1478-D4693 Model – Equipped with one test cage and one 6204 ball bearing for ASTM D1478 testing and one spindle-bearings-hub assembly with bearing packer and tools for ASTM D4693 testing.

Data acquisition software – Data acquisition software facilitates running both ASTM D1478 and D4693 tests. Graph of torque versus time details starting torque, running torque and time elapsed. Includes software, data acquisition board and cable.

Specifications
Conforms to: ASTM D1478, D4693, D4950; FTM 791-334

Cooling Range:
Standard: –65°F (–54°C)
Optional: –103°F (–75°C)

Temperature Uniformity: ±0.1°F (±0.5°C)

Refrigeration: air cooled mechanical cascade hermetic system

Cabinet: floor-mount, polished stainless steel exterior, rides on swivel casters

Dimensions lxwxh,in.(cm)
48.5x34x45.5 (123x86x116)
Net Weight: 600 lbs (272.2kg)

Shipping Information
Shipping Weight: 697 lbs (316.1kg)
Dimensions: 6.4 Cu. ft.

Ordering Information
Catalog
Number
Test Method
Electrical Requirements
Cooling Range
K18862
ASTM D1478
220-240V / 60Hz
-65°F
(-54
°C)
K18852
220-240V / 50Hz
K18863
220-240V / 60Hz
-103°F
(-75
°C)
K18853
220-240V / 50Hz
K18860
ASTM D4693
220-240V / 60Hz
-65°F
(-54
°C)
K18850
220-240V / 50Hz
K18861
220-240V / 60Hz
-103°F
(-75
°C)
K18851
220-240V / 50Hz
K18864 Combined
ASTM D1478 and D4693
220-240V / 60Hz
-65°F
(-54
°C)
K18854
220-240V / 50Hz
K18865
220-240V / 60Hz
-103°F
(-75
°C)
K18855
220-240V / 50Hz

Accessories
Catalog
Number
Product Description
K18871
Data Acquisition Package
289-001-006
Test Bearing, 6204.
For ASTM D1478
K18860-0-24
Inboard Test Bearing.
For ASTM D4693, LM-67010-LM-67048 tapered roller bearing
K18860-0-16
Outboard Test Bearing
For ASTM D4693, LM-11910-LM-11949 tapered roller bearing

www.koehlerinstrument.com