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.
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Greases for Rolling Element BearingsQuality rolling element bearing greases function over a wide temperature range; offer thermooxidative stability and low volatility; and have base oils that retain the viscosity needed to provide an adequate lubricant film throughout a specified range of operating temperatures, speeds and loads. Using these general characteristics as the yardstick for selecting a lubricant will help ensure high performance and long life for rolling element bearing applications.
Impregnating Oils for Sintered BearingsSintered powdered metal or “porous” bearings, which are impregnated with lubricating oil through a vacuum process, are generally used as an alternative to expensive rolling element bearings. In addition to impregnation, a small reservoir, usually an oil-soaked felt pad, is sometimes placed adjacent to the bearing to augment oil supply and thus extend bearing life.
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The following is a partial list of popular Nye lubricants for sintered metal bearings and rolling element bearings. 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 | Temp Range (°C) | Viscosity @ 40°C | Application Focus |
| Nye Synthetic Oil 132B | -60 to 120 | 17 cSt | PAO, plastic compatible, light viscosity oil for improved low torque start-up. |
| Nye Synthetic Oil 188B | -40 to 120 | 101.5 cSt | PAO, plastic compatible, medium viscosity oil for improved load bearing characteristics. |
| Nye Synthetic Oil 181B | -40 to 125 | 49.9 cSt | PAO, plastic compatible, light viscosity oil; most commonly used viscosity for sintered bearings. |
| Nye Synthetic Oil 310B | -25 to 125 | 550 cSt | High viscosity PAO with additives to reduce friction and wear in sintered iron bearings. |
| Nye Synthetic Oil 605* | -40 to 150 | 54 cSt | Light viscosity, polyolester oil; excellent lubricity; contains copper passivator and load bearing additives. |
| Nye Synthetic Oil 623B* | -40 to 150 | 54 cSt | Light viscosity oil, good for porous metal sleeve bearings. Low volitility. Excellent oxidation stability. |
| Nye Synthetic Oil 634B* | -40 to 150 | 35 cSt | Light viscosity polyolester-based oil with copper passivator and anti-wear additives for low torque applications. |
| Nye Synthetic Oil 590CX* | -40 to 175 | 54 cSt | Medium viscosity ester oil intended for porous bearing impregnation where low volatility and excellent thermo-oxidative stability is required. |
| Nye Synthetic Oil 148G | -40 to 175 | 153 cSt | Blend of PAO & alkylated napthalene, plastic compatible, excellent wide-temperature serviceability. |
| UniFlor™ 8150 | -25 to 225 | 200 cSt | Medium viscosity, good film strength, chemically inert, excellent thermal stability & lubricity. |
| UniFlor™ 8920 | -65 to 250 | 150 cSt | Medium viscosity, good film strength, exceptional lubricity and chemical inertness, very wide temperature capability. |
* Ester-based oils may adversely affect some plastics, such as ABS, polycarbonates, and polyphenylene oxides. If compatibility questions arise, contact Nye Lubricants prior to lubricant selection.
| Rolling Element Bearings | |||||||||
|
Grease (Temp. Range °C) |
Oil | Thickener | NLGI Grade | Dropping Point (°C) | Evaporation | Water Washout | 4-Ball Wear Scar | Rust Test | Application Notes |
|
Rheolube™ 374B (-40 to 150) |
PAO | Lithium Complex | 2 | 260 | 0.8% | 4.1% (40°C) |
0.45mm | pass | High load, lower-speed bearings. |
|
Rheolube™ 374C (-40 to 150) |
PAO | Lithium Complex | 4 | 260 | 0.9% | 2.8% (40°C) |
0.66mm | pass | Light load, high-speed bearings. |
|
Rheolube™ 374A (-54 to 175) |
PAO | Lithium Soap | 2 | 273 | 0.3% | 3.2% (40°C) |
0.44mm | pass | High speed bearings, MIL-PRF-32014A |
|
Rheoplex™ 6000HT (-40 to 150) |
Alkylated Naphtalene | Sodium Soap | 2 | >260 | 0.3% | 8% (40°C) |
0.34mm | pass | High speed bearings. |
|
Rheolube™ 716R (-54 to 150) |
Ester | Lithium Soap | 2 | 185 | 0.2% | 4.5% (40°C) |
0.50mm | pass | Low noise, low-torque, precision bearings. |
|
Rheotemp™ 500 (-54 to 175) |
Ester | Sodium Complex | 1.5 | 202 | 0.06% | 7.3% | 0.45mm | -- | High speed bearings. |
|
Fluorocarbon Gel 813-1 (-70 to 200) |
Silicone | PTFE | 1 | >260 | 0.1% | 0.6% | -- | -- | Wide-temperature instrument bearings. |
|
Rheolube™ 2000 (-45 to 125) |
MAC | Sodium Complex | 2 | >260 | 0.1% | -- | 0.38mm | -- | Aerospace and other low vapor pressure applications. Vapor pressure @ 25°C = 10-8 torr |
|
UniFlor™ 8771 (-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 |
|
UniFlor™ 8931 (-70 to 250) |
PFPE | PTFE | 2 | Non-melting | 0.13% | -- | 0.91mm | -- | Wide-temperature, low torque bearings in extreme environments. Vapor pressure @ 25°C = 10-9 torr |
| Nye Product Test Protocols | |
| Dropping Point | ASTM D-2265 |
| Evaporation | NYE CTM-1 (24 hrs. @ 100°C) |
| 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 |
Because we cannot anticipate or control the many different conditions under which this information and our products may be used, we cannot guarantee the applicability of this information or the suitability of our products in any individual situation. For the same reason, the products discussed are sold without warranty, expressed or implied. Statements concerning the possible use of our products are not intended as recommendations to use our product in the infrigement of any patent.
