Official DuPont/MOLYKOTE application
machine-tool spindles
Evaluate this product for machine-tool spindles against the actual material, component, process and operating conditions before standardization.
Products
MOLYKOTE® BG-20 Synthetic Bearing Grease
MOLYKOTE® BG-20 Synthetic Bearing Grease is a technical lubricating grease. The official Product record identifies this grade for machine-tool spindles, plain bearings, bushings and sleeves, lead screws. Key identifying data includes the technology Ester; a listed temperature range from -45°C to 180°C. Selection should be based on the material pair, motion, load, speed, temperature and environment of the actual assembly.
Primary function
What is this product used for?
MOLYKOTE® BG-20 Synthetic Bearing Grease is a technical lubricating grease. The official Product record identifies this grade for machine-tool spindles, plain bearings, bushings and sleeves, lead screws. Key identifying data includes the technology Ester; a listed temperature range from -45°C to 180°C. Selection should be based on the material pair, motion, load, speed, temperature and environment of the actual assembly.
Verified applications
Suitable use contexts
Plain bearings, bushings and sleeves
Review the bearing type, shaft and bushing materials, load, speed and lubrication regime.
lead screws
Evaluate this product for lead screws against the actual material, component, process and operating conditions before standardization.
rolling bearings
Evaluate this product for rolling bearings against the actual material, component, process and operating conditions before standardization.
Slide rails, guides and ways
Consider for sliding and guiding surfaces when load, speed and contacting materials align with the technical record.
Evaluation basis
Why evaluate this product?
Solid lubricant: None.
Before selection
Selection and operating conditions
Contacting material pair
Confirm contacting material pair against the product-specific documentation and the actual application before selection.
Motion, load and speed
Confirm motion, load and speed against the product-specific documentation and the actual application before selection.
Operating temperature
Confirm operating temperature against the product-specific documentation and the actual application before selection.
TDS, SDS and practical testing
Review the correct product TDS and SDS, check equipment requirements and evaluate the material under actual conditions before use.
Confirm the material pair, motion, load, speed, temperature, environment and lubricant application method. Review the correct TDS and SDS and test under actual application conditions before approval.
Verified source data
Key technical data
Technical characteristics
| Metric | Value |
|---|---|
| Technology | Ester |
| Lower temperature limit (°C) | -45 |
| Upper temperature limit (°C) | 180 |
| Base oil viscosity at 40°C | 55 |
| Color | Beige |
| NLGI grade | 2 |
| Thickener | Lithium Complex |
Key safety and use information
| Metric | Value |
|---|---|
| Signal word | No signal word according to the source documentation |
| Physical state | Grease |
| Odour | oily |
| Flash point | Seta closed cup >100 °C ( 212 °F) |
| Relative density | 1.01 |
This information is summarized from manufacturer technical and safety documentation for initial evaluation and does not replace confirmation under actual application conditions.
Product group and brand
Technical Greases
Technical Greases organizes verified products and supporting technical records for selection in the relevant manufacturing context.
MOLYKOTE is a DuPont brand of technical lubrication materials.
6 Product Groups
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