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NSK Deep Groove Ball Bearings 6948M ,Single-Row  D=240

DESIGN, TYPES, AND FEATURES 

SINGLE-ROW DEEP GROOVE BALL BEARINGS 

Single-row deep groove ball bearings are classified into the types shown below.
The proper amount of good quality grease is packed in shielded and sealed ball bearings. A comparison of the features of each type is shown in Table 1.

Table 1 Features of Sealed Ball Bearings 

  Note (1) The above temperature range applies to standard bearings. By using  cold- or heat-resistant grease or changing the type of rubber, the  operating temperature range can be extended. 

□Formulation of Bearing Designations

Single-row deep groove ball bearings

＊1 CM clearance may be used instead of CN clearance (the reverse is not possible).
＊2 The grease designation is required when seals/shields are used on both sides. 

NSKHPS™ Deep Groove Ball Bearings
Note (1) The above temperature range applies to standard bearings. By using
cold- or heat-resistant grease or changing the type of rubber, the operating temperature range can be extended. 
Compared with conventional bearings:
● Improved reliability
Bearing life is 15% longer than conventional bearings thanks to optimization of the bearing’s internal design and improvement of processing technology. As a result, NSKHPS™ bearings contribute to reducing maintenance costs and facilitate the downscaling of related equipment.
● New product lineup
The standard dimensions are identical to standard size bearings. NSK has expanded the lineup of NSKHPS™ bearings by focusing on a wide range of sizes offering a high degree of versatility for various general-purpose applications.