Roller Bearings

Cylindrical Roller Bearings

• Related terms: NU/NJ bearings, high-speed roller bearings, separable roller bearings
• Bearings with cylindrical rollers running between cylindrical raceways, giving high radial load capacity. Most designs feature separable inner and outer rings to simplify mounting and dismounting. Widely used in gearboxes, electric motors, and machine tools.

Cylindrical Roller Thrust Bearings

• Related terms: axial cylindrical roller bearings, flat washer thrust bearings, heavy thrust load bearings
• Thrust bearings using small cylindrical rollers arranged flat, with their axes pointing toward the bearing centre. Offer high axial load capacity at low cost, though more prone to wear than ball-type thrust bearings due to differential sliding at the roller ends.

Spherical Roller Bearings

• Related terms: self-aligning roller bearings, double-row spherical bearings, barrel-type roller bearings
• Double-row bearings with barrel-shaped rollers running on a shared spherical outer raceway, allowing the bearing to accommodate shaft misalignment while carrying very heavy radial and moderate axial loads.

Spherical Roller Thrust Bearings

• Related terms: axial spherical roller bearings, self-aligning thrust bearings, heavy-duty thrust roller bearings
• Thrust bearings that combine a spherical raceway with asymmetric barrel-shaped rollers, allowing them to carry very heavy axial loads together with some radial load and shaft misalignment. Common in vertical mills and presses.

Super Precision Roller Bearings

• Related terms: high-precision bearings, machine tool spindle bearings, ultra-precision roller bearings
• Roller bearings manufactured to tight tolerance classes (typically ISO P4/ABEC 7 and above) for minimal runout and vibration, used in machine tool spindles and other high-speed, high-accuracy applications.

Cam Follower Roller Bearings

• Related terms: stud-type cam followers, needle roller cam followers, roller followers
• Compact bearings with a thick-walled outer ring and an integral mounting stud, designed to follow a cam profile or run against a track surface. Roller-type versions use larger-diameter rollers than needle designs for higher load ratings and light thrust capability.

Tapered Roller Bearings

• Related terms: taper roller bearings, angular roller bearings, wheel bearing sets
• Bearings with tapered rollers and raceways, designed so roller axes converge at a common point on the bearing axis. Carry combined radial and axial loads and are typically used in opposing pairs, most commonly in automotive hub and gearbox applications.

Tapered Roller Bearing Cups

• Related terms: outer race, bearing cup, tapered roller outer ring
• The outer ring component of a tapered roller bearing, supplied separately from the cone so cup and cone can be matched or replaced independently.

Tapered Roller Bearing Cones

• Related terms: inner race assembly, bearing cone, tapered roller inner ring
• The inner ring assembly of a tapered roller bearing, comprising the inner raceway, tapered rollers, and cage as a single unit that fits onto the shaft and runs inside the matching cup.

Tapered Roller Bearing Spacers

• Related terms: bearing spacers, preload spacers, cone/cup spacer rings
• Precision-machined rings fitted between paired tapered roller bearing cones or cups to set the correct internal clearance or preload during assembly.

Needle Roller Bearings

• Related terms: needle bearings, thin-section roller bearings, drawn cup needle bearings
• Roller bearings using long, thin cylindrical rollers with a length at least three to four times their diameter, giving greater raceway contact area for their size than standard roller bearings. Their slim cross-section suits applications with limited radial space.

Needle Roller Cages

• Related terms: needle roller and cage assemblies, drawn cup cages, full complement needle cages
• Cage assemblies that retain and evenly space needle rollers without integral inner or outer rings, designed to run directly against a hardened shaft and housing bore.

Needle Roller Inner Rings

• Related terms: needle bearing inner races, hardened inner rings, shaft rings
• Hardened, ground inner rings used alongside needle roller and cage assemblies when the shaft itself isn't hardened or ground to bearing raceway tolerances.

Needle Roller Thrust Bearings

• Related terms: axial needle bearings, thin thrust bearings, needle thrust assemblies
• Thrust bearings using a thin cage of needle rollers to support axial loads in a compact axial space, typically run between hardened thrust washers or directly against a hardened housing face.

Needle Roller Thrust Cages

• Related terms: needle thrust cage assemblies, roller and cage thrust units
• The cage-and-roller component of a needle roller thrust bearing, supplied separately from its mating washers so it can be matched to existing hardened faces or replaced independently.

Needle Roller Thrust Washers

• Related terms: thrust bearing washers, hardened raceway washers, axial bearing washers
• Flat, hardened washers that serve as the raceway surfaces for a needle roller thrust cage, used in pairs on either side of the cage assembly.

Cam Roller Bearings

• Related terms: crowned outer race bearings, spherical OD cam bearings, track and guidance bearings
• Sealed ball or roller bearings with deep grooves and a crowned, spherical, or parallel outer diameter, built to handle shock loads and misalignment. Unlike cam follower bearings, they have no integral stud and are fitted into a separate housing or onto a shaft. Commonly used in track and guidance systems, automotive and agricultural machinery, and lifting equipment.

Barrel Roller Bearings

• Related terms: single-row spherical roller bearings, Tonnenlager, barrel bearings
• Single-row spherical roller bearings, so named for the barrel-shaped profile of the rollers. Support heavy radial loads and low axial loads via the inner ring ribs, with full self-aligning capability.

Carb Toroidal Roller Bearings

• Related terms: CARB bearings, toroidal roller bearings, self-aligning non-locating bearings
• Single-row bearings with long, slightly crowned rollers and toroidal raceways, combining the self-aligning capability of a spherical roller bearing with the free axial displacement of a cylindrical roller bearing. Used as the non-locating bearing in large electric motors and other rotating machinery. CARB is an SKF trademark, though the design is widely referred to generically as a toroidal roller bearing.

Hi-Roller Bearings

• Related terms: combination load cam followers, high-speed idler rollers, heavy-duty track rollers
• A heavy-duty cam follower and idler roller design built around deep groove ball bearings or tapered rollers, rated for combined radial and thrust loads at higher speeds than standard needle-roller cam followers. Originally a proprietary brand name (Carter Bearings), it is often used informally for this style of heavy-duty follower.

Support Roller Bearings

• Related terms: track rollers with inner ring, guide support rollers, load transfer rollers
• A track roller variant built with an inner ring so it can be mounted directly onto a shaft rather than via a stud, commonly used to support linear motion components such as platform or die transfer systems.

Track Roller Bearings

• Related terms: roller followers, guide rollers, rail rollers
• Bearings designed to run on a rail, guideway, or track surface, mounted onto an existing shaft rather than incorporating an integral stud like a cam follower. Available with cylindrical, flanged, or V-groove profiles to suit different track types.