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    Rotary Bearings & Housing Units

    Explore our range of bearings online including ball and roller bearings, track rollers and a variety of bearing units to keep your production line moving. All from trusted industry-leading manufacturers that include SKF, NSK and NMB.

    What are Bearings?

    Bearings are a key mechanical part that is fundamental to the machine industry as they can be found in various types of machines. Bearings support the shaft that rotates inside the machinery. Most industrial bearing suppliers will carry two main types of bearings - ball bearings and roller bearings. The former is a solid metal sphere that functions as a rolling element to facilitate motions while reducing friction. The latter, roller bearings, serve the same purpose but only differ in their shape.

    What Are Rotary Bearings?

    A rotary bearing is a component used in motion systems that allow the rotation of moving parts. Rotary bearings have an inner and outer surface (races) with metal balls or rollers between them. This allows the surface to slide over a shaft when in motion, reducing friction as there is low surface area contact.

    What is the Difference Between a Ball Bearing and a Roller Bearing?

    Rotary bearings are classified by the type of bearing that holds the loads in the cage between the races - ball or roller. Both types of rotary bearings can support different primary load directions, known as radial loads or axial loads (thrust).

    Ball bearings have a round ball to separate the races, which creates a very small contact area, highly reducing friction and making them ideal for high-speed applications. Ball bearings are categorised by the configuration of the outer race. Common types include deep grooves and angular contact ball bearings.

    Roller bearings have cylindrical rollers to separate the races which improves load distribution. They are available in different shapes and can handle high loads. They are categorised by the shape of the roller. Common types include tapered roller bearing and needle roller bearings.

    What Are Rotary Bearings Used For?

    Rotary bearings are designed to be used in a wide range of machine motion systems to ensure continuous low friction movement. They can be usually found in:

    • Electric motors
    • Fans
    • Gearboxes
    • Pumps

    What Do I Need to Consider When Selecting a Bearing?

    Once the bearing type is known, there are many other varying specifications of rotary bearings for consideration. Some of these include:

    • Primary load direction - radial or axial
    • Mounting configuration
    • Environment to be used in
    • Application

    What Lubrication Should be Used with Rotary Bearings?

    Bearing failure is mainly caused by lack of lubrication so it is important to select the proper oil or grease for the application.

    • Grease lubricants adhere well and usually last longer due to the thick consistency. They are best used in moderate to high load applications.
    • Oil lubricants dissipate heat well and have a lower viscosity, making them more suited to high-speed or low torque applications.
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    Plain Bearings
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    Plummer Blocks & Pillow Blocks
    Plummer Blocks & Pillow Blocks
    Rod Ends
    Rod Ends
    Roller Bearings
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    Sprag Clutch Bearings
    Sprag Clutch Bearings

    13444 Products showing for Rotary Bearings & Housing Units

    5 of 673
    NSK 6000ZZ Single Row Deep Groove Ball Bearing- Both Sides Shielded 10mm I.D, 26mm O.D
    • RS Stock No. 409-0013
    • Mfr. Part No. 6000ZZ
    Each
    PHP434.25
    Stud Cam Follower 16mm ID, 35mm OD
    • RS Stock No. 471-354
    Each
    PHP567.16
    SKF 609 Single Row Deep Groove Ball Bearing- Open Type 9mm I.D, 24mm O.D
    • RS Stock No. 286-7552
    • Mfr. Part No. 609
    Each
    PHP172.95
    Yoke Cam Follower NATV17-PP-A, 17mm ID, 40mm OD
    • RS Stock No. 174-1176
    • Mfr. Part No. NATV17-PP-A
    Each
    PHP5,160.43
    SKF 22313 EK/C3 65mm I.D Roller Bearing, 140mm O.D
    • RS Stock No. 207-8506
    • Mfr. Part No. 22313 EK/C3
    Each
    PHP17,005.28
    2 Hole Flange Bearing Unit 40mm ID
    • RS Stock No. 750-8898
    Each
    PHP1,036.18
    SKF NU 220 ECP 100mm I.D Cylindrical Roller Bearing, 180mm O.D
    • RS Stock No. 209-2016
    • Mfr. Part No. NU 220 ECP
    Each
    PHP23,059.60
    RS PRO 623-2RS Single Row Deep Groove Ball Bearing- Both Sides Sealed 3mm I.D, 10mm O.D
    • RS Stock No. 618-9856
    Each
    PHP54.53
    RS PRO 6206-2RS Single Row Deep Groove Ball Bearing- Both Sides Sealed 30mm I.D, 62mm O.D
    • RS Stock No. 619-0496
    Each
    PHP271.57
    INA, IR15X18X16-XL
    • RS Stock No. 260-0033
    • Mfr. Part No. IR15X18X16-XL
    Each (In a Pack of 5)
    PHP612.454
    LDK M8 Male Carbon Steel Rod End, 8mm Bore, 53mm Long, Metric Thread Standard, Male Connection Gender
    • RS Stock No. 185-2448
    • Mfr. Part No. POS 8
    Each
    PHP671.34
    SKF 16100 Single Row Deep Groove Ball Bearing- Open Type 10mm I.D, 28mm O.D
    • RS Stock No. 209-1865
    • Mfr. Part No. 16100
    Each
    PHP646.83
    SKF NU 317 ECP 85mm I.D Cylindrical Roller Bearing, 180mm O.D
    • RS Stock No. 209-2138
    • Mfr. Part No. NU 317 ECP
    Each
    PHP24,577.22
    RS PRO 6003-2RS Single Row Deep Groove Ball Bearing- Both Sides Sealed 17mm I.D, 35mm O.D
    • RS Stock No. 619-0301
    Each
    PHP213.94
    INA, WS81102
    • RS Stock No. 194-7376
    • Mfr. Part No. WS81102
    Each
    PHP750.15
    SKF 22219 EK/C3 95mm I.D Spherical Roller Bearing, 170mm O.D
    • RS Stock No. 207-8458
    • Mfr. Part No. 22219 EK/C3
    Each
    PHP21,430.56
    Stud Type Track Roller Track Roller NUKR52-A-NMT, 52mm OD
    • RS Stock No. 260-0322
    • Mfr. Part No. NUKR52-A-NMT
    Each
    PHP9,870.85
    SKF NU 317 ECJ 85mm I.D Cylindrical Roller Bearing, 180mm O.D
    • RS Stock No. 209-2135
    • Mfr. Part No. NU 317 ECJ
    Each
    PHP28,353.61
    SKF SYFWK 30 LTHR Pillow Block Bearing -, 30mm ID
    • RS Stock No. 125-2432
    • Mfr. Part No. SYFWK 30 LTHR
    Each
    PHP13,964.56
    SKF 2307E-2RS1TN9 Self Aligning Ball Bearing- Both Sides Sealed 35mm I.D, 80mm O.D
    • RS Stock No. 506-397
    • Mfr. Part No. 2307E-2RS1TN9
    Each
    PHP8,304.99
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