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    • High Temperature Bearing Grease with WS2

    MK-WS2-HT is a high temperature bearing grease for industrial bearings and lubrication points exposed to elevated temperature, high load, impact load, moisture or high shear. It is made with high-viscosity synthetic base oil, tungsten disulfide (WS2) particles and special additives.

    Compare Selected

    Lowerfriction supplies MK-WS2-HT high temp grease in NLGI grades 0, 1 and 2 and in cartridge, jar, pail and drum packaging. The product brochure reports a dropping point above 320 °C, low oil separation, low evaporation loss and resistance to water, rust and humid environments.

    Product availability: NLGI grades 0, 1 and 2 are included in the brochure, with packaging from a 400 g cartridge to a 170 kg drum. Verify the current grade, stock, packing, pricing and product documents before purchase.

    MK-WS2-HT product overview

    Specification note: The brochure specifies a synthetic high-viscosity base oil, whereas the SDS lists both mineral oil and polyalphaolefin as constituents. Do not describe MK-WS2-HT as fully synthetic unless the current technical documentation states this.

    Available pack sizes

    ProductSKUNLGI gradePackagingPurchase
    MK-WS2-HT High Temperature Bearing Grease with WS2 MK-WS2-HT 0, 1 and 2 400 g Cartridge View Product
    MK-WS2-HT High Temperature Bearing Grease with WS2 MK-WS2-HT 0, 1 and 2 1 kg Jar View Product
    MK-WS2-HT High Temperature Bearing Grease with WS2 MK-WS2-HT 0, 1 and 2 18 kg Pail View Product

    Technical specifications

    Test / propertyTypical dataTest method
    Cone penetration (NLGI class) 0, 1 and 2 ASTM D217 / GB/T269
    Penetration (0.1 mm) 310–340 / 259–265 / 220–250 ASTM D217 / GB/T269
    Dropping point >320 °C ASTM D2265 / GB/T3498
    Oil separation on steel net (100 °C, 24 h) <0.3% ASTM D1742-94 / SH/T0324
    Copper corrosion (100 °C, 24 h) No colour change ASTM D4048 / GB/T7326(II)
    Evaporation loss (150 °C, 22 h) <0.4% ASTM D972-02 / SH/T0337
    Water washout (38 °C, 1 h) <3.5% ASTM D1264 / SH/T0109
    Coefficient of friction 0.015 Brochure-listed value
    Free alkali, NaOH <0.05% SH/T0329

    Performance note: The brochure lists a temperature range of -20 °C (-4 °F) to 800 °C (1472 °F). Confirm suitability for continuous or intermittent service in the actual equipment. The 300,000 psi figure applies to WS2 as a material and is not a certified load rating for the finished grease.

    Selection factors for bearings

    Selection factorMK-WS2-HT selection consideration
    Operating temperature Select based on the actual equipment temperature, duty cycle and operating conditions. The brochure lists a dropping point above 320 °C.
    Load requirement Consider high load and impact load applications. Validate equipment load requirements before selection.
    Speed Confirm grease consistency and equipment speed requirements before choosing the NLGI grade.
    Water / humidity exposure Review water resistance, washout performance and maintenance frequency for exposed lubrication points.
    NLGI grade Available NLGI grades: 0, 1 and 2. Select according to the lubrication system and equipment specification.
    Relubrication requirement Set the relubrication interval based on temperature, load, environment and operating conditions.

    Industrial applications of high temp bearing grease

    Application / requirementHow MK-WS2-HT is usedSelection note
    Industrial bearings For elevated temperature, load and friction. Confirm grade and equipment requirements.
    High or impact loads EP and abrasion resistance support severe-duty contact. Validate load and relubrication interval.
    Water or humidity Water, rust and humidity resistance supports exposed lubrication points. Review washout and maintenance frequency.
    High shear Mechanical stability supports repeated shear conditions. Confirm consistency and compatibility.

    Choosing an NLGI grade

    The brochure gives NLGI 0 at 310–340, NLGI 1 at 259–265 and NLGI 2 at 220–250 penetration (0.1 mm). Select the grade on the equipment specification, lubrication system and application method, not on the temperature claim alone.

    Need help selecting a high temperature grease? Send Lowerfriction the NLGI grade, temperature, load, moisture exposure, application method and quantity for product and purchasing guidance.

    Packaging, storage and handling

    ItemSupplied information
    Documented packaging 400 g cartridge; 1 kg jar; 18 kg pail; 170 kg drum. Check availability.
    Storage Store in authorized containers in a cool, dry, well-ventilated place away from heat and sources of ignition, firmly closed.
    Incompatible materials Avoid contact with acids or strong oxidizers.
    Handling and PPE Avoid skin and eye contact. Use suitable gloves and eye or face protection.
    Environmental precautions Avoid release to the environment and collect spillage.
    Transport Based on the supplied SDS, the product is not regulated under DOT/TDG, IMDG and ICAO/IATA transportation regulations.
    Shelf life / MOQ Not provided in the supplied documents.
    Safety note: The SDS uses the signal word Danger and lists skin irritation, serious eye damage and long-term aquatic hazard. Review the latest SDS before use. The supplied revision is dated July 5, 2020.

    Product documents

    Frequently asked questions

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    What is high temperature grease used for?

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    Which NLGI grades are available for MK-WS2-HT?

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    What is the listed temperature range?

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    Is MK-WS2-HT a fully synthetic grease?

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    What packaging is available for bulk orders?

    Buy high temperature grease or request a quote

    Order or request a quote: Select the required MK-WS2-HT product from the category page, or contact Lowerfriction to confirm current pricing, NLGI grade, packaging, bulk quantity, technical documents and purchasing support.

    Contact Lowerfriction | sales@lowerfriction.com

    Technical information notice: Product information is for preliminary evaluation only and does not guarantee performance or suitability. Review the current SDS, TDS, and product specifications, try a small sample first, and confirm suitability before bulk use. Read the full disclaimer