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Antiwear, antifoam, rust & oxidation resistant hydraulic oil provides excellent service life in closed circulating hydraulic systems.

BLACK BEAR SERIES “R HYDRAULIC OILS are Superior Turbine Quality hydraulic oils designed to significantly out-perform industry standard hydraulic oils. Formulated from high quality base stocks and double fortified with improved thermally stable performance additives, these oils will ensure long life protection in all types of hydraulic pumps.

No.4 Safety Data Sheet

No.3 Safety Data Sheet

No.2 Safety Data Sheet

No.1 Safety Data Sheet

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BLACK BEAR SERIES “R” HYDRAULIC OILS’ unique super-active additive formulation virtually eliminates the formation of heat related sludging in sensitive electro hydraulic servos associated with conventional zinc type additives. The premium performance additives incorporated in these oils perform exceptionally well even in the finest filtration systems. These oils also exhibit good hydrolytic stability in the presence of water and will not contribute to either the formation of metal etching acids or corrosive reactants.

BLACK BEAR SERIES “R” HYDRAULIC OILS offer exceptional performance in any high output equipment where sustained heat is prevalent. The double compounding of performance additives give these oils optimum antiwear protection and outstanding ASTM D 943 Turbine Oxidation Test performance (4000+ hours).


For hydraulic systems where anti-wear, “R & O”, and foam resistant oils are specified.
• Vickers I-286-S, M-2950-S
• Racine, variable volume vane pumps – DIN 51524, Part 2 – Jeffrey No. 87 – U.S. Steel 136, 127 – Commercial Hydraulics*
• General Motors LH-04-1, LH-06-1, LH-15-1 – Denison HF-1, HF-2, HF-0
• Cincinnati Milacron P-68, P-69, P-70 – Lee – Norse 100-1
• Ford M-6C32 – B.F. Goodich 0152 – AFNOR E 48-603
• Paper Machines Except for PM-500 series
* Except for PM-500 series silver containing pumps which require R & 0 only additive systems.

No. 1R No. 2R No. 3R No. 5R
SAE Grade 10W 10W 20W 30W
ISO Viscosity Grade 32 46 68 100
Gravity, °API 31.5 31.0 30 29.6
Flash Point, °F 400 420 420 480
Pour Point, °F -25 -25 -20 -2
Viscosity, SUS @ 100°F 150 200 300 500
Viscosity, SUS @ 210°F 43 46.5 53 64
Viscosity Index (V.I.) 100 101 100 97
Rust Test ASTM D 665 A,B Pass Pass Pass Pass
Oxidation Test, ASTM D 943, Hrs. 4000 4000 4000 4000
Foam Test ASTM D 892(3 SEQ) 0-0 0-0 0-0 0-0
Cincinnati Milacron Requirement P-68 P-70 P-69
DIN 51524 Part 2 Grade HLP32 HLP46 HLP68
Zinc, ppm. 500 500 500 500
Vickers 35VQ25 Wgt. Loss / Mg. 14 14 14 14