KLÜBER to Shell Spindle Bearing Grease Cross-Reference Table
| KLÜBER Product | Equivalent Product | Compatibility & Notes |
| ISOFLEX TOPAS NB 52 | Shell Gadus S5 V100 2 | Barium complex vs lithium complex. ISOFLEX TOPAS rated to 2M DN; Gadus S5 V100 rated lower. |
| ISOFLEX TOPAS NB 5051 | Shell Gadus S5 V100 2 | Higher base oil viscosity than NB 52. Verify speed factor and temperature requirements. |
| ISOFLEX NBU 15 | Shell Gadus S2 V220 1 | Ester/PAO base vs mineral. NBU 15 is designed for high-speed spindles with ester's low friction coefficient. |
| ISOFLEX LDS 18 Special A | Shell Gadus S5 V100 2 | Long-life synthetic spindle grease. LDS 18 uses special lithium soap with ester base — verify DN rating. |
| Kluberspeed BF 72-22 | Shell Gadus S2 V100 2 | Both polyurea, low-torque synthetic. Kluberspeed is optimized for electric motor bearings. |
Reference: Published product datasheets from KLÜBER Lubrication and Shell. Verify with current datasheets before substitution.
⚠ Important Disclaimer
This cross-reference is provided for informational purposes only. Equivalent does not mean identical — differences in thickener type, base oil viscosity, additive packages, and NLGI grade can affect performance. Always verify technical compatibility by consulting both manufacturers' datasheets and obtaining OEM approval before substituting lubricants. Contact KOEED for verified KLÜBER product recommendations matched to your specific application requirements.
> Tip
When cross-referencing, always verify: (1) thickener compatibility — mixing incompatible thickeners can cause grease to soften or harden, (2) base oil viscosity at operating temperature, (3) NLGI grade for proper consistency, (4) certification status (NSF H1, ISO 21469) for food-grade applications. If in doubt, contact KOEED for a verified recommendation.
Frequently Asked Questions
Q: Why is ISOFLEX TOPAS preferred for ultra-high-speed spindles?
The barium complex thickener in ISOFLEX TOPAS provides exceptional mechanical stability under continuous high-speed shear. At DN values above 1 million mm·rpm, lithium complex thickened greases (including Shell Gadus S5 V100) can soften and lose consistency faster than barium complex greases. For spindles operating at extreme speeds, ISOFLEX TOPAS's proven DN rating of 2 million represents a significant engineering margin.