Page 4 - e3241a

High speed The new recirculation system that utilizes NSK's high speed and low noise technology
more than doubles the d·n value from 70 000 to 160 000.
To extend the range of the lead to 20mm, high speed operation of over 60m/min. is
possible.

Smooth pick up of balls in tangential direction

Middle deflector

SRC recirculation system End deflector
Lead 5 to 12
End deflector and middle deflector recirculation system
Lead 16 and 20

l Allowable feed speed of combinations of shaft diameter and lead.

Shaft Lead 5 10 12 16 20
[mm]
diameter [mm]

32 25m/min 50m/min

40 40m/min 48m/min 64m/min 80m/min

45 35m/min

50 32m/min 38m/min

*Allowable speed needs to be calculated. See the permissible rotational speed in the
dimensions table.

Low Compared to our conventional products, the average noise level has been reduced by
noise and more than 6 dB, reducing the number of colliding balls and recirculation parts thanks
vibrations to high speed, low noise technology.
The vibration level of the nut has also been reduced drastically.

100 14
conventional NSK product
conventional NSK product
90 12
Noise level [dB]
Vibration acceleration [m/s2] 10

8
6 HSS series

80 4

HSS series 2

70 1 500 2 000 2 500 3 000 0 1 500 2 000 2 500 3 000
1 000 1 000

Rotational speed [min-1] Rotational speed [min-1]

Noise level measurement result Vibration level measurement result
(Shaft dia. 40, lead 16mm) (Shaft dia. 40, lead 16mm)

3