Three-Figure Bearings: The angle in degrees measured clockwise from North. It is common to put extra "0"s to make it a full 3 digits, so: • North is 000° • East is 090° • South is 180° • West is 270° Compass Bearings: The 4 main directions of North, South, East and West, as well as in-between those bearings such as North-East etc.

Bearingsynonym

VR1 The most common style available in the widest range of sizes from .110" (2.7mm) shaft to 79.530" (2020mm) nitrile and fluoroelastomer. Ideal for protecting gearboxes, electric motors and drives.

In addition to highly effective contaminant exclusion, Vrings can be used to retain grease lubricants. However, with proper countersurface preparation they can run dry with very low torque loss and good service life. Because the V-ring is very elastic (smaller V-rings can be stretched up to 2 1/2 times their free diameter) it can often be easily fitted to shafts without disassembly of the unit—even over flanges, pillow blocks, or other assemblies. One size V-ring can be used on a number of shaft sizes either English or metric dimension. Less than 142 sizes covers a wide range of shaft sizes from .110" (2.7mm) to 29' (9000mm). Sizes up to 79.530" (2020mm) and beyond are available in nitrile or fluoroelastomer (Viton™) covering a wide variety of media compatibility in temperature ranges from -40°F to 212°F (nitrile) and -15°F to 392°F fluoroelastomer.

Bearingdefinition in surveying

Designed with a long, flexible lip, the V-ring can act as a face seal, a lip seal or slinger. The construction is three part: the body (a), the conical self-adjusting lip (b) and the hinge (c). The elastic body holds itself in place on the rotating shaft while dynamic sealing takes place where the lip is in axial contact with the counterface. The counterface should be metal and can be the end of a gearbox housing, a washer, a suitable steel stamping, even the back of an oil seal. Generally no seal bore is required and no shaft preparation is needed.

V-ring seals are available in a large variety of designs and sizes to fit the requirements of most applications. V-rings are normally made of nitrile rubber. For applications where higher temperatures occur or where aggressive media are present, V-rings made of fluoro rubber should be used.

Define bearingin a sentence

V-rings are normally made of nitrile rubber that features good chemical resistance, resistance to wear and can be used in applications with normal operating temperatures. For applications with higher temperatures or where aggressive media are present, V-rings made of fluoro rubber can be supplied. The permissible operating conditions for V-rings made of nitrile or fluoro rubber are listed in the table. In the product table under the heading "Lip code", the letters R and V are used to identify nitrile rubber and fluoro rubber respectively.

VR3 Very compact axial cross-section commonly used in confined spaces to replace labyrinth seals. Available in nitrile and fluoroelastomer for shaft sizes from 4.134" (105mm) shaft to 78.745" (2000mm) and beyond.

The V-ring is an all-rubber seal available from All Seals.It is mounted directly on the shaft by hand and seals against a counterface. This unique design has been extensively used on a broad range of applications.

Bearingdefinition engineering

VR2 The original V-ring designed with a wide body and tapered heel to firmly hold the ring on the shaft. Available in sizes from .180" (4.5mm) shaft to 8.270" (210mm). Commonly used in agricultural and automotive applications.

VR6 This heavy-duty profile is also designed primarily for protecting high speed bearing arrangements in rolling mills, papermaking and large machine applications. It should especially be considered for new equipment designs. The shape is similar to the VR5 except it does not have the extension to the rear of the body section, allowing a narrower B1. It does retain the saddle feature for axial and radial location on the shaft with a specially designed clamping band. The key installation dimensions are the same as the VR4 except for the body height. Available on a made to order basis in both nitrile and fluoroelastomer for shafts from 11.811" (300mm) to over 78" (2000mm).

Define bearingin mathematics

VR4 A heavy-duty large diameter style commonly used in rolling mills as a secondary seal for heavy duty applications where the primary seal has to be protected against water and or particulate contamination. VR4 is the preferred heavy duty V-ring in replacement applications. Selected sizes are in stock and others can be made to order. For new designs, the VR6 should be considered and has similar mounting dimensions. Available in both nitrile and fluoroelastomer for shafts from 11.811" (300mm) to over 78" (2000mm).

VR5 A heavy-duty large diameter style designed to operate in the severe conditions found in metals and paper mills. The unique body profile can accommodate radial and axial support in high shaft speeds applications. It has an extension that can be fitted into mechanical components or trimmed to length to meet existing space requirements (contact SKF for details). Available for shaft diameters from 11.811" (300mm) to over 78" (2000mm) in nitrile and fluoroelastomer on a made-toorder basis.