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      Bearings


Performance of the lubricant in the bearing industry is a major issue – how long and how well it can minimize friction to prevent bearing wear. Nye offers an extensive collection of bearing oils and greases. Each is designed to provide an adequate film of lubricant throughout a range of operating temperatures, speeds and loads, and to resist oxidation, thermal breakdown, and evaporation. Some of Nye’s most popular bearing lubricants are listed below. Note: For precision bearing applications, Nye’s ultrafiltration service of bearing oils and greases is recommended. Contact a Nye engineer for additional information.

Nye Product Protocols

Dropping Point NYE CTM-1 (24 hrs. @ 100°C)
Evaporation ASTM D-2265
Water Washout ASTM D-1264 (60 min. @ 80°C)
4-Ball Wear Scar ASTM D-2266 (1 hr., 75°C, 40kg, 1200RPM)
Rust Test ASTM D-1743

Our Products

Following is a partial list of popular Nye lubricants for ball screws and lead screws. Additional oils and greases are available to meet a wide range of application requirements. For technical specifications, evaluation samples, questions about any Nye products, or to discuss a lubricant custom-designed for your application — call us at +1.508.996.6721.

Sintered Bearings

Synthetic Oils Temperature 
Range (°C)		 Viscosity @ 40°C Application Focus
-60 to 120 17 cSt PAO, plastic compatible, light viscosity oil for improved low torque start-up.
-40 to 175 153 cSt Blend of PAO & alkylated napthalene, plastic compatible, excellent wide-temperature serviceability.
-40 to 125 49.9 cSt PAO, plastic compatible, light viscosity oil; most commonly used viscosity for sintered bearings.
-40 to 120 101.5 cSt PAO, plastic compatible, medium viscosity oil for improved load bearing characteristics.
-25 to 125 550 cSt High viscosity PAO with additives to reduce friction and wear in sintered iron bearings.
-40 to 175 54 cSt Medium viscosity ester oil intended for porous bearing impregnation where low volatility and excellent thermo-oxidative stability is required.
-40 to 150 54 cSt Light viscosity, polyolester oil; excellent lubricity; contains copper passivator and load bearing additives.
-40 to 150 54 cSt Light viscosity oil, good for porous metal sleeve bearings. Low volitility. Excellent oxidation stability.
-40 to 150 35 cSt Light viscosity polyolester-based oil with copper passivator and anti-wear additives for low torque applications.
-65 to 250 150 cSt Medium viscosity, good film strength, exceptional lubricity and chemical inertness, very wide temperature capability.

Rolling Element Bearings

Grease Temperature 
Range (°C)		 Oil Thickener NLGI 
Grade		 Dropping 
Point (°C)		 Evaporation Water 
Washout		 4-Ball 
Wear Scar		 Rust 
Test		 Application Notes
-54 to 177 PAO Lithium Soap 2 273 0.3% 3.2% (40°C) 0.44mm pass High speed bearings, MIL-PRF-32014A
-40 to 150 PAO Lithium Soap 2 260 0.8% 4.1% (40°C) 0.45mm pass High load, lower-speed bearings.
-40 to 150 PAO Lithium Soap 4 304 0.2% 2.8% (40°C) 0.66mm pass Light load, high-speed bearings.
-40 to 150 Alkylated Naphtalene Sodium Soap 2 >260 0.3% 8% (40°C) 0.44mm pass High speed bearings.
-45 to 125 MAC Sodium Soap 2 >260 0.1% -- 0.38mm -- Aerospace and other low vapor pressure applications. Vapor pressure @ 25°C = 10-8 torr
-54 to 150 Ester Lithium Soap 2 185 0.2% 4.5% (40°C) 0.50mm pass Low noise, low-torque, precision bearings.
-54 to 175 Ester Sodium Soap 2 212 0.64% 7.3% 0.48mm -- High speed bearings.
-50 to 250 PFPE PTFE 2 Non-melting 0% 0.4% 0.56mm (20kg) -- Wide-temperature bearings in extreme environments. Vapor pressure @ 25°C = 10-9 torr
-70 to 250 PFPE PTFE 2 Non-melting 0.13%
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Greases for Rolling Element Bearings

Impregnating Oils for Sintered Bearings