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Koehler K94800 Grease Test Rig RHF 1
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Update Terakhir
31 Okt 2019
Negara Asal
United States
Pembelian Min
1 unit

Spesifikasi

Test Method

The purpose of the test is to measure the ability of a grease to lubricate at various high speeds, temperatures and axial loads. The grease quality is measured by recording the number of running hours before the grease ceases to lubricate and, as a consequence, the bearings fail. The longer the number of running hours in the test unit, the more effectively the grease lubricates under those conditions. In this way the maximum operating speed, temperature and load for a particular grease can be determined.

Specifications

Spindle Speed:

K94800/K94890: 60,000 RPM
K94801/K94891: 75,000 RPM

Test temperature: Up to 230 °C

Axial test load: 50 to 1 100 N/bearing

Drive: high-speed spindle

Operating system: Windows 7

Evaluation system: Industrial panel PC

Test bearings
For pure high-speed grease testing (synthetic cage):7005
For high-temperature/speed testing (metal cage): 6204 shields delivered separately in the package

Grease filling grades
For pure high-speed grease testing: 10 to 15% of the free volume 0,71 to 1,06 cm3
For high-temperature/speed testing: 20 to 30% of the free volume, 1,4 g corresponds to 30% when the specific weight is in a range of 0,9 to 1,0 g/cm3

Test parameters
For pure high-speed grease testing:
Speed rating for grease acc. 50,000 RPM = 1,8 mill. n × Dm
Maximum spindle speed possible 60,000 RPM = 2,16 mill. n × Dm
Maximum spindle speed possible 75,000 RPM = 2,7 mill. n × Dm
Axial load 50 to 350 N load applied pneumatically
Ambient temperature
Speeds and loads freely selectable and changeable during test duration

For high-temperature/speed testing:
Test bearing with shields or without shields
Speed rating for grease acc. 32,000 RPM = 1,072 mill. n × Dm
Maximum spindle speed possible 60,000 RPM = 2,01 mill. n × Dm
Maximum spindle speed possible 75,000 RPM = 2,7 mill. n × Dm
Axial load 50 ... 1,100 N load applied pneumatically
Temperature up to 230 °C
Speeds, temperature and loads freely selectable and changeable during test duration

Alat Laboratorium Umum

Untuk keterangan lebih lanjut, silahkan download PDF ini :

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