HIGH PERFORMANCE MINERAL GEAR OILS

Contact surfaces of meshing gears experience extreme pressures. The lubricant must not only provide an adequate film, but dissipate the heat. Temperature has a major effect on the scuffing phenomenon of gear tooth.

The Berugear, Staroil and Berusynth range of mineral and synthetic based gear oils by BECHEM offer superior performance by reducing friction and power loss as well as managing temperature rise.

Equipped with EP additives to minimise wear, the special gear oil range by BECHEM are recommended for heavy duty gear boxes running under high mechanical or thermal loads. These heavy duty gear oils possess excellent oxidation stability and shear resistance thereby enabling stable lubricating film for extended circulation life.

HIGH PERFORMANCE GEAR OILS

High performance gear oil for spur, bevel, planetary and worm gears with excellent wear resistance. Developed with high quality base oil and performance additives ensure resistance to ageing, good viscosity-temperature behaviour as well as good load carrying ability. Staroil G series extend oil changing intervals. The special gear oil range is compatible with mineral oil resistant sealing materials and machine paints.

ProductBase OilTypeTemp Range °CSend Your Queries
BECHEM Staroil G Series (100 to 680)

  • Closed gears
  • Roller bearings
  • Plain bearings
Mineral oilCLP-30 to +180

High performance oil with dynamic additives and solid lubricants for effective lubrication of applications under high loads. Solid lubricants in Staroil SMO series ensure protection against wear of the friction surfaces. High ageing resistance prolongs oil changing intervals. Available in varying viscosities from 68 to 1500 cSt, Staroil SMO has good viscosity temperature behaviour.

Applications: Recommended for heavy duty spur, bevel and worm gears in rolling mills, crushers, mills, calenders, cranes, conveyors and open cast mining equipment. Suitable for gears with toothe flanks exposed to very high surface pressure or shock loads. Also suitable for heavy duty roller and plain bearings in raw material extraction and preparation, sugar and construction industry

ProductBase OilTypeTemp Range °CSend Your Queries
BECHEM Staroil SMO 68 to 150

  • High loads
  • Closed gears
  • Roller bearings
  • Plain bearings
Mineral oilCLPF-30 to +90
ProductBase OilTypeTemp Range °CSend Your Queries
BECHEM Staroil SMO 220 t0 320

  • High loads
  • Closed gears
  • Roller bearings
  • Plain bearings
Mineral oilCLPF-15 to +110
ProductBase OilTypeTemp Range °CSend Your Queries
BECHEM Staroil SMO 460 to 680

  • High loads
  • Closed gears
  • Roller bearings
  • Plain bearings
Mineral oilCLPF-5 to +120
ProductBase OilTypeTemp Range °CSend Your Queries
BECHEM Staroil SMO 1500

  • High loads
  • Closed gears
  • Roller bearings
  • Plain bearings
Mineral oilCLPF-5 to +130

Berugear GSBM series are high performance gear and circulation oils with PD additives for gearboxes running under high mechanical loads and heavily loaded gears. Berugear GSBM range of gear oils provide excellent oxidation and shear stability, superior load carrying capacity and wear protection. Forms reactive surface layer which supports plastic deformation and thus increases the contact area. Most suitable for gears subjected to high sliding friction. The gear oil series with reduced coefficient of friction results in lower sump temperatures, minimum power loss and extended oil change intervals.

Applications: Recommended as running in oil with gears under heavy loads as well as shock loads, also as anti wear gear oils to prevent further deterioration of already damaged gears. These specially formulated gear oils are recommended for heavily loaded spur gears, bevel, spiral and worm gears.

Please consult a BECHEM Application Engineer for selection of the suitable grade of ‘Berugear GSBM’ series for your application.

ProductBase OilTypeTemp Range °CSend Your Queries
Berugear GS 220 – 1500 BMMineral oilCLP-20˚C to +120˚C

Frequently Asked Questions

Short bytes for queries on lubricants that always bothered you

Emulsifiers help in increasing solubility of the cutting oil in water by breaking down the oil into smaller globules and thereby maintaining a stable and uniform emulsion. A stable emulsion provides longer tank life and also ensures lower carry over loss resulting in minimum top ups.

The basic function of a cutting fluid is to provide adequate lubrication to the tool and work piece friction zone as well as remove heat generated by cooling the deformation area. Some additional properties that are desired in the cutting fluid are,

  • Ability to rinse away the metal debris from the friction zone
  • Provide adequate protection against corrosion to the machine and work piece
  • Compatible to machine paint and ensure stain free machines
  • Easy to handle and comply to safety and environmental regulations

Intense amount of heat is generated between the grinding wheel and work piece due to friction and cutting process. Uncontrolled heat can lead to structural damage of the work piece and increase in wear rate of the wheel. Fine dust and metal debris are continuously generated and needs to be cleared out from the wheel, work piece interface. The cutting fluid for Grinding process should possess the right amount of lubricity and cooling property to reduce friction and manage temperature rise. Additionally the cutting fluid should also possess the right amount of detergency and flushing property to clear the fine machined debris.

With a higher dosage of lubricity to reduce friction and temperature rise, the coolant should also contain EP additives that can protect the tool by forming a thin layer between the tool and work piece. Additionally, the cutting fluid should possess the right amount of flushing property to clear the machined swarf from the machined area

Ideally, de mineralized (DM) water with neutral pH of 7 and hardness less than 50 ppm is recommended. The chloride level should be less than 25 ppm with no bacterial and fungal presence. Usage of hard water leads to increased conductivity, hence poor rust protection and lower sump life.

‘Oil into water’ or ‘oil in last (OIL)’ is a recommended practice for better solubility of the coolant in water. Water in oil would result in large size oil globules with the oil loving ‘oleopphilic’ ions of the emulsifier being ineffective. This would lead to a unstable oil water emulsion.

  • Keep a regular check on the concentration of the emulsion, maintain recommended concentration
  • Remove any tramp oil from the coolant tank thoroughly
  • Measure pH regularly
  • Avoid all sorts of dust near the tank, remove the machined debris from the tank regularly.
  • Follow the prescribed procedure while changing the coolant.

Including the effectiveness of ‘cutting fluid’, tool life is impacted by a host of other parameters including cutting speed, feed rate, depth of cut, tool and work material, nature of cut and machine rigidity. Cutting fluids with high amount of EP additives would insulate the tool from frictional wear and ensure longer life. Studies have shown that with all other parameters remaining the same, cutting fluids with good EP properties can increase tool life by 20 to 40%.

Aluminum alloys which contain Copper and Zinc as alloying elements are susceptible to chemical reaction (black stains) with cutting fluids that contain Amines as ingredient.  For machining such Aluminum alloys, amine free cutting fluids are recommended

Colour change of the emulsion is notable during machining of Cast Iron with the Fe ions dissolving with the emulsion. However with all other parameters such as pH, conductivity, concentration and microbial behavior remaining within the specified limits, colour change does not impact performance of the emulsion.

Operators handling components with bare hands and in constant touch with the emulsion could feel irritation and itchiness or develop rashes as well. As sensitivity of the skin is subjective, operators need to handle machined components with proper gloves and other protective gear with the objective of avoiding direct contact with the emulsion. Barrier creams could also be considered where direct contact is unavoidable.

Ensuring a stable emulsion with regular check on pH levels and microbial growth by removing chips, swarf and tramp oil from the tank will also help in reducing possibilities of such concerns. Encourage operators to maintain good personal hygiene, recommend regular laundry of their work dress, avoiding wet rags into pockets, usage of mild soaps etc.