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SKF Bearing Grease (LGMT 2 and General)

軸受グリース / SKF (Official website) / Listed on page 125 of the document

A general designation for bearing greases with different applications and temperature ranges depending on thickener type, including lithium, lithium complex, polyurea, and PTFE. Food-grade versions are also included.

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SKF Bearing Grease (LGMT 2 and General) on page 125 of SKF "SKFメンテナンス製品と潤滑製品"
Source: SKF「SKFメンテナンス製品と潤滑製品」page 125
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Specifications

Base oil kinematic viscosity (40°C) 110 mm2/s
Low-Temperature Limit (LTL) -30 °C
High-temperature performance limit (HTPL) 120 °C

How to choose Grease

Points to check when selecting, with the values for this product (SKF Bearing Grease (LGMT 2 and General)).

  1. 1. Check the operating temperature range and dropping point

    First confirm that the operating temperature falls within the service temperature range. Listed dropping points range from 120 to 300°C, which indicate the temperature at which the grease softens and flows at high temperature, but the dropping point is not the same as the continuous service temperature. On the low-temperature side, starting torque and pumpability are affected.

  2. 2. Select base oil viscosity to suit speed and load

    This product: Base oil kinematic viscosity (40°C) 110 mm2/s

    The base oil kinematic viscosity at 40°C varies widely among listed products, from 18 to 1370 mm2/s. Low viscosity suits high-speed rotation or low-torque applications, while high viscosity suits low-speed, high-load applications where an oil film must be maintained. Estimate the required viscosity from bearing speed, load and operating temperature.

  3. 3. Evaluate water and heat resistance by thickener

    Lithium soap is general purpose, lithium complex tends toward higher-temperature use, and calcium sulfonate complex tends to be resistant to large amounts of water and high loads. Greases with different thickeners may soften when mixed, so confirm compatibility with the existing grease when replenishing.

  4. 4. Match the NLGI consistency grade to the lubrication method

    In NLGI grades, a smaller number means a softer grease. Grade 1 is used for pumpability in centralized lubrication, grade 2 for general bearings, and grade 3 for locations where grease tends to flow out, such as vertical shafts and large bearings. Also check the worked penetration range.

  5. 5. Check extreme pressure performance for high-load applications

    For shock loads or low-speed, high-load conditions, the four-ball weld load (2000 to 8000 N among listed products) serves as a guide to extreme pressure performance. Where micro-slip or oil film breakdown is likely, grades containing solid lubricants such as molybdenum disulfide or graphite are also candidates.

  6. 6. Select base oil type for special environments

    Mineral oil grades are used for general applications, synthetic oils such as PAO for low temperatures down to around -50°C or ultra-high speeds, ester-based biodegradable grades for environmental considerations, and fluorine-based grades for vacuum and clean environments. For vacuum applications, also check the ambient pressure, cleanliness level and evaporation loss data.

This guide was written by AI based on the listed products' documents and specification items.

About Grease and all products

Description

Various NLGI 1 to 3 greases can be selected by application. They are classified into low-temperature, high-load, high-temperature, and food-grade types, and can be selected based on performance test data. Storage period is 5 years from the date of manufacture.

Features

  • Selection based on test data
  • NLGI 1 to 3 consistency grades
  • Food-grade available
  • 5-year storage from date of manufacture (2 years for food-grade and biodegradable)

Applications

  • Lubrication of rolling bearings
  • Low-temperature environments
  • High-load and high-temperature environments
  • Food machinery

FAQ

Q. Can SKF Bearing Grease (LGMT 2 and General) be used in low-temperature or high-temperature environments?
A. The specifications list a low temperature limit (LTL) of -30 °C and a high temperature performance limit (HTPL) of 120 °C. It is also stated to be suitable for low-temperature environments and high-load, high-temperature environments.
Q. What consistency grades are available for SKF Bearing Grease (LGMT 2 and General), and how should one be selected for food machinery?
A. Consistency grades are NLGI 1 to 3, and can be selected by application. They are classified into low-temperature, high-load, high-temperature, and food-grade types, and food-grade items are available for food machinery.
Q. What is the storage period for SKF Bearing Grease (LGMT 2 and General)?
A. The storage period is 5 years from the date of manufacture. For food-grade and biodegradable greases, it is 2 years.
Q. What is the base oil kinematic viscosity of SKF Bearing Grease (LGMT 2 and General)?
A. The base oil kinematic viscosity is 110 mm2/s at 40 °C.

Written by AI based on the content of the source documents.

Source documents

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