Klüberfood NH1 94-301 vs SKF LGFP 2: Food-grade bearing grease: KLUBER vs SKF
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Klüberfood NH1 94-301 vs SKF LGFP 2: Food-grade bearing grease: KLUBER vs SKF
In food, beverage, and pharmaceutical processing environments, bearing lubrication presents a unique set of engineering challenges. Lubricants must perform reliably under load, resist washdown procedures, maintain chemical stability across temperature cycles, and—critically—comply with stringent food-safety regulations governing incidental product contact. Two products dominate the specification landscape for these applications: Klüberfood NH1 94-301 from Klüber Lubrication and SKF LGFP 2 from SKF.
Klüberfood NH1 94-301 is a premium synthetic food-grade grease built on a highly refined synthetic hydrocarbon (PAO-type) base oil with a calcium complex thickener system. It carries NSF H1 registration, ISO 21469 certification, and FDA 21 CFR § 178.3570 compliance, positioning it at the upper tier of food-grade lubricant integrity. SKF LGFP 2 is a general-purpose food-grade grease formulated with medical white oil and an aluminium complex thickener, bearing NSF H1 registration along with Halal and Kosher certifications. Though both are specifiable for food-processing bearings, their underlying chemistries, performance envelopes, and application sweet spots differ in ways that merit a detailed, side-by-side engineering evaluation.
This comparison is written for maintenance engineers, reliability managers, and lubrication specialists who need data—not marketing claims—to make an informed specification decision. We examine base oil and thickener chemistry, temperature and speed limits, EP performance, water resistance, certification scope, and practical handling characteristics, then map these attributes to real-world operating scenarios.
Technical Comparison
| Specification | Klüberfood NH1 94-301 | SKF LGFP 2 |
|---|---|---|
| Base Oil | Highly refined synthetic hydrocarbon oil (PAO-type) | Medical white oil (highly refined mineral) |
| Thickener | Calcium complex soap | Aluminium complex soap |
| NLGI Grade | 1 | 2 |
| Operating Temperature Range | −40 °C to +140 °C (−40 °F to +284 °F) | −20 °C to +110 °C (−5 °F to +230 °F) |
| Base Oil Viscosity at 40 °C | ~300 mm²/s (ISO VG 320) | 150 mm²/s (ISO VG 150) |
| Worked Penetration (60 strokes) | 310–340 × 0.1 mm | 265–295 × 0.1 mm |
| Dropping Point | ≥ 250 °C | > 250 °C |
| Four-Ball Weld Load (EP) | ~3,000 N | 1,100 N (minimum) |
| Speed Factor (n × dm) | ~400,000 mm/min | Not published |
| Grease Life (R0F L50, 10,000 r/min) | Not published | 1,000 hours at 110 °C |
| Corrosion Protection (Emcor) | ≤ 1 (distilled water, 168 h) | 0–0 (distilled water, NaCl, washdown) |
| Water Resistance (DIN 51807, 3 h / 90 °C) | Not published (calcium complex inherently good) | 1 max. (excellent) |
| Oil Separation | ≤ 7 wt% (30 h, 100 °C, ASTM D6184) | 1–5% (7 d, 40 °C, static, DIN 51817) |
| Certifications | NSF H1 (140682), ISO 21469, FDA 21 CFR § 178.3570 | NSF H1 (128004), Halal, Kosher |
| Colour | Beige | Transparent |
| Shelf Life | ~36 months (unopened, dry storage) | 2 years |
Examining the table reveals several fundamental divergences. First, the thickener chemistry—calcium complex versus aluminium complex—is not a superficial distinction. Calcium complex thickeners generally exhibit superior mechanical shear stability and higher dropping points in sustained high-temperature service, while aluminium complex soaps deliver intrinsically better water resistance, as confirmed by the Emcor 0–0 rating of SKF LGFP 2 across distilled water, salt water, and washdown conditions. Second, the NLGI grade difference (1 vs. 2) means the Klüber product is a softer, more pumpable grease suited to centralized lubrication systems, whereas the SKF product is a firmer body grade that stays in place better in horizontally mounted bearings. Third, the base oil viscosity gap—~300 vs. 150 mm²/s at 40 °C—translates directly into different film thickness regimes: the higher-viscosity Klüber base oil provides a more robust elastohydrodynamic (EHL) film at low speeds and elevated temperatures, while the lower-viscosity SKF base oil generates less churning drag at higher shaft speeds.
Strengths of Klüberfood NH1 94-301
The most operationally significant strength of Klüberfood NH1 94-301 is its synthetic PAO-type base oil paired with an ISO VG 320 viscosity. This combination delivers a thicker lubricant film at the rolling-element/raceway interface compared to lower-viscosity alternatives, which is particularly advantageous in slow-speed, high-load bearings where boundary and mixed lubrication regimes predominate. The calcium complex thickener provides excellent mechanical stability—the grease resists softening under prolonged working, maintaining its consistency (NLGI 1, 310–340 penetration) through extended service intervals.
The low-temperature performance is a decisive differentiator. With a flow pressure of ≤1,400 mbar at −40 °C and a continuous service floor of −40 °C, NH1 94-301 is specifiable for cold-chain and freezer applications where SKF LGFP 2 (rated only to −20 °C) will stiffen excessively and risk lubricant starvation at startup. The upper temperature limit of +140 °C also exceeds the SKF product's +110 °C ceiling by a meaningful 30 °C margin, making NH1 94-301 the appropriate choice for oven-adjacent bearings, cooking-line conveyors, and equipment exposed to steam-cleaning cycles.
The four-ball weld load of ~3,000 N—nearly three times the 1,100 N minimum of SKF LGFP 2—indicates substantially higher extreme-pressure load-carrying capacity. For linear guides, ball screws, and bearings subject to shock loading or micro-oscillating movements (common in blow-moulding and filling machinery), this additional EP margin can be the difference between acceptable wear rates and premature surface distress. Furthermore, ISO 21469 certification provides an additional, independently audited layer of hygiene assurance that goes beyond self-declared NSF H1 registration—a meaningful consideration for facilities subject to third-party food-safety audits under schemes such as FSSC 22000 or BRC.
Strengths of SKF LGFP 2
SKF LGFP 2 is engineered around water resistance and corrosion protection as its primary performance pillars, and the published data support that focus. The Emcor corrosion rating of 0–0 across distilled water, 0.5% NaCl solution, and simulated washdown water is an exceptional result that reflects the inherent hydrophobic character of the aluminium complex thickener system. In high-hygiene processing environments—dairy, meat, poultry, and ready-to-eat meal lines—where aggressive daily foam-and-rinse washdowns are standard practice, this level of corrosion resistance directly translates into extended bearing service life and reduced unplanned downtime.
The published R0F grease life of 1,000 hours (L50 at 10,000 r/min, 110 °C) provides maintenance planners with a defensible relubrication interval baseline—an engineering data point that Klüberfood NH1 94-301 does not publish in its standard datasheet. For conveyor bearings, bottling-line roller bearings, and multi-pack cassette bearings operating at moderate speeds and temperatures, this quantifiable grease life allows engineers to align relubrication schedules with planned production outages rather than reacting to bearing failures.
The transparent, neutral-coloured appearance of SKF LGFP 2 is a practical field advantage that is often overlooked in specification sheets. In food-processing environments, a grease that goes on clear makes it visually obvious when it becomes contaminated with product residue, metal wear particles, or process water. This enables quicker visual inspection by maintenance technicians. Additionally, the Halal and Kosher certifications expand the product's applicability into facilities producing certified foods, where every process input must carry appropriate religious-compliance documentation—a requirement that Klüberfood NH1 94-301 does not explicitly address in its standard certification portfolio.
Limitations and Considerations
Neither product is universally optimal, and an honest engineering assessment must acknowledge where each falls short. Klüberfood NH1 94-301, despite its broader temperature range and higher EP performance, has a documented oil separation of up to 7 wt% under the ASTM D6184 test (30 hours at 100 °C). In high-temperature, long-duration service, this degree of base oil bleed can contribute to hardening of the thickener residue, potentially reducing relubrication effectiveness if the old grease is not adequately purged. The calcium complex thickener, while mechanically stable, does not provide the same level of intrinsic water washout resistance as the aluminium complex system in SKF LGFP 2—the Emcor result of ≤1 corrosion degree with distilled water is good but not as definitive as the 0–0 rating of the competing product across aggressive media.
SKF LGFP 2 is limited by its mineral base oil. Medical white oil is highly refined and meets food-grade purity requirements, but it is not a synthetic fluid. The viscosity index (VI) of a mineral oil is inherently lower than that of a PAO synthetic, meaning the SKF product's effective viscosity will drop more sharply as temperature rises and thicken more rapidly as temperature falls. This is reflected in its narrower operating temperature window (−20 to +110 °C). The lower base oil viscosity of 150 mm²/s at 40 °C also means thinner EHL films in slow-speed, high-load bearings, potentially increasing wear rates in heavily loaded applications. The four-ball weld load of 1,100 N, while adequate for general-purpose food-processing bearings, is not sufficient for applications involving significant shock or vibratory loading.
Both greases share a common practical limitation: neither is recommended for applications where there is potential for significant incidental food contact beyond the trace levels implied by NSF H1 registration. In production areas where lubricant contact with product is more than incidental—for example, direct food-contact release applications—an NSF H3 or 3H-rated product is required. Additionally, the thickener chemistries of both products are incompatible with conventional lithium and lithium-complex greases; mixing either with residual lithium grease in a bearing housing will soften the grease structure and compromise performance. A thorough purge-and-clean procedure is necessary when converting from a lithium-based to either of these products.
Recommendation: When to Choose Which
Choose Klüberfood NH1 94-301 when:
- Cold-chain or freezer operation: The −40 °C low-temperature capability is essential for spiral freezers, cold storage conveyors, and refrigerated processing lines where startup torque and lubricant pumpability at sub-zero temperatures matter.
- High-temperature exposure (>110 °C): Ovens, fryers, steam-traced lines, and equipment adjacent to cooking or thermal-processing zones where sustained temperatures exceed SKF LGFP 2's upper limit require the +140 °C rating of NH1 94-301.
- Centralized lubrication systems: The NLGI 1 consistency and synthetic PAO base oil provide the pumpability needed for single-line and progressive distributors with long feed lines, especially where ambient temperatures in the lubrication circuit may be low.
- High-load, slow-speed bearings and linear motion: The ~3,000 N four-ball weld load and 300 mm²/s base oil viscosity deliver the EP margin and film thickness required for ball screws, linear guides, plain bearings, and heavily loaded rolling bearings operating in the boundary-lubrication regime.
- ISO 21469-certified facilities: Plants that operate under FSSC 22000, BRC, or other GFSI-benchmarked schemes where independently audited lubricant hygiene certification is a compliance requirement should preference ISO 21469-certified products.
Choose SKF LGFP 2 when:
- Aggressive wet and washdown environments: Dairy, meat, poultry, seafood, and beverage plants where bearings are subjected to daily high-pressure hot-water and chemical-foam cleaning benefit from the exceptional water resistance and Emcor 0–0 corrosion rating of the aluminium-complex formulation.
- Moderate-speed, moderate-temperature conveyor and packaging bearings: Bottling lines, canning conveyors, wrapping machines, and general material-handling bearings operating between −20 and +110 °C at moderate speeds — the 1,000-hour R0F grease life provides a known, predictable relubrication interval.
- Halal- or Kosher-certified production: Facilities producing certified foods where every consumable input (including lubricants) requires explicit religious-compliance documentation will find SKF LGFP 2's dual certification directly applicable.
- Visual inspection accessibility: In plants where maintenance technicians rely on visual checks of grease condition—looking for colour change or visible contamination—the transparent formulation of LGFP 2 makes contamination immediately evident.
- Budget-constrained general food-grade relubrication: For standard horizontal ball bearings in non-critical, moderate-duty food-processing positions, SKF LGFP 2 provides adequate performance at a generally more accessible price point per kilogram.
Overlap zone: When both work, and the decision turns on practical factors
For a typical food-processing bearing—a deep-groove ball bearing in a conveyor head pulley, running at 500–1,500 r/min, ambient temperature 10–40 °C, with occasional low-pressure rinse-down—both products are technically adequate. In this overlap zone, the decision should be driven by practical considerations: existing lubricant inventory consolidation, local distributor availability and technical support, compatibility with existing automatic lubrication system hardware, and whether the facility's food-safety compliance framework requires ISO 21469 certification. Where both products meet the technical specification, standardizing on one supplier across a site often yields better results than mixing products, because it eliminates the risk of thickener incompatibility and simplifies maintenance training.
Availability and Technical Support
KOEED maintains regular stock of both Klüberfood NH1 94-301 and SKF LGFP 2 in common packaging formats, including cartridges (400 g / 420 ml), 1 kg cans, and bulk containers. For maintenance engineering teams requiring detailed product datasheets, grease-life calculations, compatibility assessments against existing lubricant inventories, or a formal technical consultation before specification, please contact our application engineering desk at Moritta@KOEED.COM. We can also arrange sample quantities for on-site compatibility and performance trials against your specific bearing types and operating conditions.