Bearings, Antifriction, Unmounted from United Kingdom (UK)

Question 1

What is Federal Supply Class 3110?

Accepted Answer

FSC 3110 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 3110) in the USA for supply items codified in the category of Bearings, Antifriction, Unmounted.

Question 2

What is NATO Supply Classification Class 3110?

Accepted Answer

NSC 3110 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 3110 in the USA) for supply items codified in the category of Bearings, Antifriction, Unmounted.

Question 3

Which Federal Supply Group is FSC 3110 in?

Accepted Answer

FSC 3110 is in Federal Supply Group (FSG) 31 which contains Bearings.

Question 4

Which NATO Supply Classification Group is NSC 3110 in?

Accepted Answer

NSC 3110is in NATO Supply Classification Group (NSG) 31 which contains Bearings.

Question 5

What is an Annular Ball Bearing?

Accepted Answer

An Annular Ball Bearing (BEARING,BALL,ANNULAR) is a cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see BEARING, BALL, DUPLEX. Excludes BEARING, BALL, AIRFRAME.

Question 6

What is a Cylindrical Roller Bearing?

Accepted Answer

A Cylindrical Roller Bearing (BEARING,ROLLER,CYLINDRICAL) is a nonadjustable roller bearing consisting of a single or multiple-row of hardened cylindrical rollers and a retainer used with or without inner or oute r rings. Excludes BEARING, ROLLER, AIRFRAME.

Question 7

What is a Self-Aligning Roller Bearing?

Accepted Answer

A Self-Aligning Roller Bearing (BEARING,ROLLER,SELF-ALIGNING) is an antifriction bearing having a cylindrical rolling element and one spherical raceway which will adjust to varying degrees of shaft and/or support misalignment without damage to the raceways and permits the full rating of the bearing to be utilized.

Question 8

What is a Journal Roller Bearing?

Accepted Answer

A Journal Roller Bearing (BEARING,ROLLER,JOURNAL) is an item in which the shaft or revolving part turns upon hardened rollers usually contained in a cage. It must contain an inner or outer race, or both. For items without a race(s), see RETAINER AND ROLLER, BEARING.

Question 9

What is a Thrust Ball Bearing?

Accepted Answer

A Thrust Ball Bearing (BEARING,BALL,THRUST) is an antifriction bearing having a ball rolling element, designed to resist axial thrust, or to support an axial load. Excludes BEARING, BALL, PIVOT.

Question 10

What is a Thrust Roller Bearing?

Accepted Answer

A Thrust Roller Bearing (BEARING,ROLLER,THRUST) is an antifriction bearing having a roller rolling element, designed to resist axial thrust, or to support an axial load.

Question 11

What is a Tapered Roller Bearing?

Accepted Answer

A Tapered Roller Bearing (BEARING,ROLLER,TAPERED) is a cylindrical device in which the inner cone or outer cup turns upon a single or double row of tapered hardened rollers which roll easily in a race, thus minimizing friction and designed to carry a radial load and capable of sustaining axial thrust. Excludes BEARING, ROLLER, THRUST.

Question 12

What is a Tapered Roller Bearing Cone And Rollers?

Accepted Answer

A Tapered Roller Bearing Cone And Rollers (CONE AND ROLLERS,TAPERED ROLLER BEARING) is an assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).

Question 13

What is a Tapered Roller Bearing Cup?

Accepted Answer

A Tapered Roller Bearing Cup (CUP,TAPERED ROLLER BEARING) is an outer component of a tapered roller bearing which provides a contact surface for the rolling elements of the bearing.

Question 14

What is an Inner Bearing Ring?

Accepted Answer

An Inner Bearing Ring (RING,BEARING,INNER) is the inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.

Question 15

What is an Outer Bearing Ring?

Accepted Answer

An Outer Bearing Ring (RING,BEARING,OUTER) is the outer component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.

Question 16

What is a Bearing Seat?

Accepted Answer

A Bearing Seat (SEAT,BEARING) is a rigid item usually circular in shape, designed to accommodate a bearing. It positions the bearing but does not encase it or restrain its motion.

Question 17

What is a Bearing Ball Retainer?

Accepted Answer

A Bearing Ball Retainer (RETAINER,BALL,BEARING) is a frame or inclosure which spaces and retains the rolling elements of a BEARING, BALL (as modified).

Question 18

What is a Bearing Roller Retainer?

Accepted Answer

A Bearing Roller Retainer (RETAINER,ROLLER,BEARING) is a frame or inclosure which spaces and retains the rolling elements of a BEARING, ROLLER (as modified).

Question 19

What is a Bearing Retainer And Balls?

Accepted Answer

A Bearing Retainer And Balls (RETAINER AND BALLS,BEARING) is an assembled inner component of a ball bearing, consisting of a frame or inclosure which spaces and fixes the position of the rolling elements of a BEARING, BALL (as modified) and the spherical bodies which are the rolling elements in a BEARING, BALL (as modified).

Question 20

What is a Bearing Retainer And Rollers?

Accepted Answer

A Bearing Retainer And Rollers (RETAINER AND ROLLERS,BEARING) is an assembled inner component of a roller bearing, consisting of a frame or inclosure which spaces and retains the rolling elements of a BEARING, ROLLER (as modified) and the rollers which are the rolling elements in a BEARING, ROLLER (as modified).

Question 21

What is a Bearing Ball?

Accepted Answer

A Bearing Ball (BALL,BEARING) is a homogenous spherical body, a series of which provides the rolling elements in a BEARING, BALL (as modified). The item is designed primarily to alleviate friction. It may have other usages such as the checking component in a ball-type check valve. Excludes BALL, CHECK; BALL, VALVE, PORTED.

Question 22

What is a Bearing Roller?

Accepted Answer

A Bearing Roller (ROLLER,BEARING) is a cylindrical body of either solid or hollow construction which provides the rolling elements in the roller bearing.

Question 23

What is a Needle Bearing Cam Follower?

Accepted Answer

A Needle Bearing Cam Follower (CAM FOLLOWER,NEEDLE BEARING) is an assembly consisting of a roller and stud used to effect a rolling contact with a cam, and convert the reciprocating or oscillating motion to linear motion.

Question 24

What is an Airframe Ball Bearing?

Accepted Answer

An Airframe Ball Bearing (BEARING,BALL,AIRFRAME) is a cylindrical item in which the inner or outer ring turns upon row(s) of hardened BALL, BEARING which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes BEARING, BALL, ANNULAR.

Question 25

What is an Airframe Roller Bearing?

Accepted Answer

An Airframe Roller Bearing (BEARING,ROLLER,AIRFRAME) is a cylindrical item in which the inner or outer ring turns upon row(s) of hardened ROLLER, BEARING which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes BEARING, ROLLER, CYLINDRICAL.

Question 26

What is a Rod End Ball Bearing?

Accepted Answer

A Rod End Ball Bearing (BEARING,BALL,ROD END) is a special single or multiple-row ball bearing, rigid or self-aligning, and constructed with either a solid or hollow shank, internally or externally threaded.

Question 27

What is a Rod End Roller Bearing?

Accepted Answer

A Rod End Roller Bearing (BEARING,ROLLER,ROD END) is a special single or multiple-row roller bearing, rigid or self-aligning, and constructed with either inside threaded, plain hollow, maile threaded, or solid shank.

Question 28

What is a Needle Roller Bearing?

Accepted Answer

A Needle Roller Bearing (BEARING,ROLLER,NEEDLE) is a single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

Question 29

What is a Radial And Thrust Ball And Roller Bearing?

Accepted Answer

A Radial And Thrust Ball And Roller Bearing (BEARING,BALL AND ROLLER,RADIAL AND THRUST) is a bearing consisting of a ball or roller radial unit and a ball or roller thrust unit. The inner ring of the radial unit is integrally one ring of the thrust unit. See also BEARING, BALL, ANNULAR.

Question 30

What is a Replacement Bearing Shield?

Accepted Answer

A Replacement Bearing Shield (SHIELD,BEARING,REPLACEMENT) is a metal or plastic shield located on the face sides of a ball or roller bearing, primarily designed to prevent foreign substances from entering the internal construction of the bearing.

Question 31

What is a Bearing Retaining Plate?

Accepted Answer

A Bearing Retaining Plate (PLATE,RETAINING,BEARING) is a comparatively flat rigid item, with or without a centrally located aperture, designed to hold an annular bearing or a sleeve bearing in a fitted inclosure. It must have drilled and/or tapped holes for mounting purposes. Excludes END BELL, ELECTRICAL ROTATING EQUIPMENT.

Question 32

What is a Duplex Ball Bearing?

Accepted Answer

A Duplex Ball Bearing (BEARING,BALL,DUPLEX) is two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Question 33

What is a Bearing Collar?

Accepted Answer

A Bearing Collar (COLLAR,BEARING) is a retaining ring mounted on a shaft with setscrew, key or pin, specifically designed for the purpose of locating and positioning a bearing. For general purpose shaft collars, see COLLAR, SHAFT. Excludes BEARING WASHER, THRUST; and BEARING, SLEEVE.

Question 34

What is a Mechanical Equipment Bearing Replacement Parts Kit?

Accepted Answer

A Mechanical Equipment Bearing Replacement Parts Kit (PARTS KIT,BEARING REPLACEMENT,MECHANICAL EQUIPMENT) is a parts kit consisting of one or more bearings or bearing assemblies, which are issued as a unit for repair/replacement. It may include gasket(s), O-ring(s), race(s), seal(s), spacer(s), washer(s), or the like.

Question 35

What is a Slewing Ring Bearing?

Accepted Answer

A Slewing Ring Bearing (BEARING,SLEWING RING) is a major cylindrical antifriction bearing in which the inner or outer ring turns on a single or multiple row of hardened balls and/or rollers. The rolling elements roll either directly on the inner and outer ring or on race wires inserted into these rings which may have gear teeth. The item is designed for direct eccentric mounting on components requiring support for rotational operation and it is primarily used to accommodate and support radar antennas, gun mounts, tank turrets and slewing cranes.

Question 36

What is a Bearing Ball Set?

Accepted Answer

A Bearing Ball Set (BALL SET,BEARING) is a set of BALL,BEARING (00036).  The balls may belong to a bearing or be used independent from a bearing.  In the latter case the function of the inner and outer race is taken over by adjacent components.

Question 37

What is a Linear Motion Ball Bearing?

Accepted Answer

A Linear Motion Ball Bearing (BEARING,BALL,LINEAR MOTION) is a cylindrical device, containing three or more oblong ball circuits complete with a retainer to guide the balls in their proper path, specifically designed for use on sliding linear motion shafts to minimize friction and wear.

Bearings, Antifriction, Unmounted - United Kingdom (UK)

Federal Supply Class (FSC): 3110

NATO Supply Classification Class (NSC): 3110

Federal Supply Group (FSG): 31 Bearings

NATO Supply Classification Group (NSG): 31 Bearings

Items Managed by United Kingdom (UK) - NCB is 99

Page 22 of 54

NSN Format for Bearings, Antifriction, Unmounted
Codified by United Kingdom

Frequently Asked Questions(FAQ) for Federal Supply Class 3110

Supply Items Included in Federal Supply Class 3110

Stock Items From Supply Class 3110 Page 22 of 54