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Sealed Single-Row Deep Groove Ball Bearings (2RZ, 2RS1, 2Z Seals) d 80–160 mm

密封型単列深溝玉軸受 / SKF (Official website)

A series of sealed single-row deep groove ball bearings with bore diameters of 80–160 mm. Fitted with contact seals and shields, with dimensions, basic load ratings, limiting speeds and masses shown for each bearing number.

Last verified: (date the content was verified against the source document)

Specifications

Inner diameter d 80~160 mm
Outer diameter D 86.6~240 mm
Width B 10~50 mm
Basic dynamic load rating Cr 13~208 kN
Basic static load rating C0r 11.2~186 kN
Limiting speed (grease lubrication) 2 800~11 000 r/min
Mass 0.31~12.7 kg

密封型単列深溝玉軸受 model comparison

Compare 2 models in the same series by specification.

Model Inner diameter d Outer diameter D
密封型単列深溝玉軸受 3 to 15 mm 7 to 28 mm
密封型単列深溝玉軸受(2RZ・2RS1・2Z密封)d 80~160mm This product 80~160 mm 86.6~240 mm

How to choose Rolling Bearings

Points to check when selecting, with the values for this product (Sealed Single-Row Deep Groove Ball Bearings (2RZ, 2RS1, 2Z Seals) d 80–160 mm).

  1. 1. Bore and housing bore dimensions

    This product: Inner diameter d 80~160 mm

    Select the bore diameter d to match the shaft seat, the outside diameter D to match the housing bore, and the width B to suit the installation space. Main dimensions are standardized in ISO and JIS dimension series, so interchangeable products can be found by boundary dimension designation. For tapered roller bearings, also check the assembled width T; for thrust bearings, also check the height H.

  2. 2. Dynamic load rating based on life calculation

    This product: Basic dynamic load rating Cr 13~208 kN

    The basic dynamic load rating Cr is the reference value for calculating rated life. Verify that the required life is met using the equivalent load during operation and the rotational speed. For ball bearings, life is proportional to the cube of the load ratio, so providing load margin greatly extends life.

  3. 3. Margin for static and shock loads

    This product: Basic static load rating C0r 11.2~186 kN

    The basic static load rating C0r is the allowable standard for permanent deformation generated at the rolling elements and raceways under stationary or low-speed conditions. For applications with oscillating motion or shock loads, confirm that a static safety factor against the maximum load is secured using C0r.

  4. 4. Operating speed and lubrication method

    This product: Limiting speed (grease lubrication) 2 800~11 000 r/min

    The limiting speed differs by lubrication method, and separate values are given for grease lubrication and oil lubrication. Confirm that the normal operating speed does not exceed the limiting value, and in high-speed ranges also consider cage material and precision grade. The reference speed can also be consulted as a thermal guideline.

  5. 5. Precision grade and internal clearance

    Precision grades (P0, P6, P5, etc.) indicate rotational accuracy and dimensional accuracy; for high-precision applications such as machine tool spindles, select higher grades. Internal clearance (C2, CN, C3, etc.) is selected to allow for changes caused by interference fit and temperature differences during operation.

  6. 6. Materials and lubrication suited to the environment

    For corrosive, high-temperature, vacuum, or clean environments, select specifications such as rings and rolling elements made of stainless steel or ceramics, or solid lubricants and fluorine grease for vacuum use. Check the operating temperature range, low dust generation, and whether food-grade grease registration applies against the application conditions.

This guide was written by AI based on the listed products' documents and specification items.

About Rolling Bearings and all products

Description

A reference covering main dimensions such as outside diameter, width, basic load ratings and limiting speeds, together with mounting dimensions and calculation factors. Three seal types are available: 2RZ (non-contact), 2RS1 (contact) and 2Z (shield). SKF Explorer bearings are distinguished by an asterisk (*).

Features

  • Selectable seal type: 2RZ, 2RS1 or 2Z
  • Includes SKF Explorer bearings

FAQ

Q. What are the ranges of bore diameter, outside diameter and width for sealed single-row deep groove ball bearings (2RZ, 2RS1, 2Z seals)?
A. The bore diameter d is 80–160 mm, the outside diameter D is 86.6–240 mm, and the width B is 10–50 mm.
Q. What seal types are available for sealed single-row deep groove ball bearings, and how are SKF Explorer bearings identified?
A. Three seal types are available: 2RZ (non-contact), 2RS1 (contact) and 2Z (shield). SKF Explorer bearings are identified by an asterisk (*) after the bearing number.
Q. What are the basic load ratings and limiting speeds of sealed single-row deep groove ball bearings?
A. The basic dynamic load rating Cr is 13–208 kN and the basic static load rating C0r is 11.2–186 kN. The limiting speed (grease lubrication) is 2 800–11 000 r/min.
Q. What is the mass of sealed single-row deep groove ball bearings?
A. The mass is 0.31–12.7 kg.

Written by AI based on the content of the source documents.

Source documents

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