INSOCOAT Cylindrical Roller Bearing

Specifications

How to choose Cylindrical Roller Bearings

Points to check when selecting, with the values for this product (INSOCOAT Cylindrical Roller Bearing).

1. 1. Boundary dimensions that fit the shaft and housing

   This product: Inner diameter d 50~150 mm

   Select the bore diameter d to match the shaft diameter and the outside diameter D to match the housing bore, and determine the width B from the available installation space. Even with the same bore, there are dimension series with different outside diameters and widths, and wide-section types and types with thicker outer ring walls also exist. Confirm the boundary dimensions d×D×B combination against the bearing number.

2. 2. Select a rated load that suits the load conditions

   The basic dynamic load rating Cr is the basis for life calculation; calculate whether the required life is met from the actual load and rotational speed. For large loads at standstill or low speed, or for shock loads, also check the basic static load rating C0r. Wide-section, double-row and full-complement types are options when greater load capacity is needed.

3. 3. Determine the type for fixed and free positions

   NU and N types allow relative axial movement between the inner and outer rings, making them suitable for the free side that absorbs thermal expansion of the shaft. If axial load is applied, choose NJ or NF types for one direction, or NUP types for both directions. First determine which bearing in the overall bearing arrangement locates the shaft axially.

4. 4. Select a clearance that suits fit and temperature

   This product: Internal clearance C3

   Internal clearance is available in classes such as C2, CN and C3. Consider a larger clearance class where an interference fit or a temperature difference between inner and outer rings reduces the clearance during operation. Tapered bore double-row types allow clearance adjustment by the amount of push-in and are used in applications with strict clearance control, such as machine tool spindles.

5. 5. Match rotational speed with cage and accuracy grade

   For high-speed rotation, check the permissible rotational speed as well as the cage material (brass, steel sheet or resin) and the accuracy class. Full-complement types without cage have high load capacity but are unsuitable for high speed. Hybrid types with silicon nitride rollers offer low friction and support high-speed rotation.

6. 6. Check electrical erosion countermeasures and maintainability

   In inverter-driven motors and generators, current can flow through the bearing causing electrical erosion, so consider insulated-coated or ceramic-roller types. For outdoor use or locations that are difficult to lubricate, also check for sealed, grease-packed designs, rust-preventive treatment, and ease of disassembly and inspection.

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

About Cylindrical Roller Bearings and all products

Description

Single-row cylindrical roller bearing of NU type with an outer ring coating (VL0241) and an inner ring coating (VL2071). Dimensional standard is ISO 15, and internal clearance is C3. Products are divided into bore diameter ranges of 50 to 95 mm and 100 to 150 mm.

FAQ

Q. What applications are the SKF INSOCOAT cylindrical roller bearings (C3VL0241/C3VL2071) suited for?

A. These are cylindrical roller bearings with an insulating coating on the outer or inner ring to prevent electrical erosion in applications such as motors. They are intended for use in electric motors and generators.

Q. What are the differences between INSOCOAT NU-type cylindrical roller bearings C3VL0241 and C3VL2071, and what bore diameter ranges do they correspond to?

A. C3VL0241 has an insulating coating (VL0241) on the outer ring, and C3VL2071 has an insulating coating (VL2071) on the inner ring. The bore diameter range is 50 to 150 mm, with products divided into 50 to 95 mm and 100 to 150 mm ranges.

Q. What are the dimensional standard and internal clearance of C3VL0241/C3VL2071?

A. The dimensional standard is ISO 15, and the internal clearance is C3.

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

Source documents

• Catalog SKF 転がり軸受カタログ 15 エンジニアリング製品 15A センサー軸受ユニット 120 pages Open page 69
  Found on: https://azuma-eg.com/catalogue/