LGHC 2 High-Load, Water-Resistant, High-Temperature Bearing Grease

Specifications

How to choose Grease

Points to check when selecting, with the values for this product (LGHC 2).

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

   This product: Operating Temperature Range –20 – +140 °C

   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) 450 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

   This product: Thickener Calcium sulfonate complex

   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

   This product: NLGI viscosity grade (consistency number) 2

   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

   This product: Four-ball welding load 4000 N

   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

   This product: Base oil type (kind) Mineral oil

   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

Mineral oil-based grease using calcium sulfonate complex technology. Withstands high loads, large amounts of water and high temperatures, and is suitable for the cement, mining and steel industries.

FAQ

Q. What applications is LGHC 2 suited for?

A. LGHC 2 is suited for roll stands in the metallurgical industry, continuous casting equipment, vibrating screens and bearings for ball mills. It withstands large amounts of water, high temperatures and high loads, making it suitable for demanding applications in the cement, mining and steel industries.

Q. What are the operating temperature range and dropping point of LGHC 2?

A. The operating temperature range is –20 – +140 °C, and the dropping point is >300 °C.

Q. What are the thickener and base oil type of LGHC 2?

A. The thickener is calcium sulfonate complex, and the base oil type is mineral oil.

Q. What are the consistency and standard code of LGHC 2?

A. The NLGI consistency grade (penetration number) is 2, and the DIN 51825 code is KP2N-20. The worked penetration (60 strokes) is 265-295 10–1 mm.

Q. What are the features and load-carrying performance of LGHC 2?

A. Its features are good mechanical stability, excellent corrosion resistance and excellent high-load lubrication capability. The four-ball weld load is 4000 N.

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

Source documents

• Catalog SKFメンテナンス製品と潤滑製品 204 pages Open page 150
  Found on: https://azuma-eg.com/catalogue/