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Plummer Blocks

NSK Plummer Blocks are available with a variety of end covers and special seal options to ensure effective sealing. With a facility for easy mounting and dismounting of pre-assembled shafts these products are manufactured in NSK Japanese and RHP European styles.

Used with self-aligning ball bearings or high-capacity spherical roller bearings, they are manufactured from high-strength cast iron as standard but are also available in spheroidal graphite cast iron or cast steel. Used with either oil or grease lubrication, the housings have a re-lubrication facility.

Product Features and Benefits:

Split plummer block design allows for easy mounting and dismounting of pre-assembled shafts.
Sealing options - NSK offers a range of sealing options including V-ring seals, labyrinth seals or heavy-duty taconite seals.
Case end covers available.
Multi relubrication points are provided to ensure re-lubrication of the bearing depending on orientation
Housing are supplied with spacer rings in order to provide axial location. Those can be ommitted for "free end" axial front.

NSK range of Plummer Blocks include: spherical roller bearings, locknuts, adapter sleeves, locking washers, etc.

For a detailed description please click on the PRODUCTS tab above.

To support you, NSK has developed the following technical tools:

CAD Drawings

You can use our CAD service to obtain an image, which can be imported into your CAD package.

For Linear Components & Bearings: solidcomponents.com
For Bearings: cadenas

Bearings - Calculation Tools

NSK Portal NAVI-FOCUS supports you with following bearing calculation tools:

Bearing life (NSK ABLE/ ISO 281)
Bearing Fits and Clearances

Bearing frequencies
Load:
Required minimum load for Cylindrical Roller Bearings
Maximum permissible axial loads for Cylindrical Roller Bearings
Frictional moment, reference and thermal permissible speed:
Frictional moment
Reference speed (ISO 15312:2003) and Thermal permissible speed
Lubrication:
Grease replenishing interval
Reference kinematic viscosity

Linear Components - Calculation tools

NSK Megatorque Motor Selection Tool supports you with following calculations:

Calculation of load moment of inertia
Motor selection by the shortest positioning
Motor selection from movement pattern

NSK Linear Guides Calculation Tool

Reference tool to simplify the life and load calculation of NSK Linear Guides.

Technical website

Our Technical Website offers tools and information to help you identify the right product:

Troubleshooting Guide: common bearing failure modes are described, allowing you to make an assessment of your own bearing's condition and provide feedback on cause and effect.
The ABC of Bearings: all about types and features of Rolling Bearings, bearing selection procedure, selection of bearing type and arrangement etc.
Bearing Specifications: download a technical specification sheet detailing the bearings main features with further options to the calculation or drawing services.
Technical Journals - Motion & Control: background information on both bearing performance and technical features, combined with application knowledge.

www.tec.nsk.com