The FYH NU-LOC bearing grips the shaft more uniformly, which allows for 360 degrees of equalized locking contact. Compared to set screw bearings, the roundness of the ball path on the NU-LOC bearings results in better operation and longer life. NU-LOC concentric locking collars are designed to prevent shafting from becoming marred or burred. A single standard hex head cap screw can be tightened quickly and easily, and NU-LOC bearings can replace either setscrew or eccentric locking collar inserts.


 
360°LOCKING


NU-LOC concentric locking collar with a single cap screw provides excellent holding power. The collar is installed over the slotted inner ring on the shaft concentrically.

Quick & Easy Installation with a single hex cap screw.

  
Dimension Tables (211KB)

  


NU-LOC's standard tolerance specification is designed for high speed applications, and the greater roundness of the ball path enable the use of smaller internal ball clearance.
The bore tolerance is also smaller since NU-LOC has the 360 degrees of equalized locking contact.
NU-LOC is not only good for the high speed applications, but great for the other applications as well.

 
 
NU Type
UC Type（Reference）
Operating Temperature
-4〜212℉ (-20〜100℃)
Grease
Gold No.3A
Seals
NBR
Anti-Rotation Pin
YES
NONE
Locking
Concentric Locking Collar for NU-LOC
Set screws
Radial Internal Clearance
C2
CN
Tolerance of Bore
Table 1
Table 2
 
Table1 Tolerance and tolerance values of inner rings of NU type bearings unit: µm
Nominal bearing bore dia.
d
(mm)
Variation of tolerance
of average bore dial. in plane
Δdmp
Unequal bore
dia. in plane
Vdp
Radial runout
of inner ring
Kia
Over
Inc.
Max.
Min.
Max.
Max.

-
10
18
31.75
50.8
10
18
31.75
50.8
80
+13
+13
+13
+15
+18
0
0
0
0
0
6
6
10
10
14
7
8
10
10
13

 
Table2 Tolerance and tolerance values of inner rings of UC type bearings (Reference） unit: µm
Nominal bearing bore dia.
d
(mm)
Variation of tolerance
of average bore dia. in plane
Δdmp
Unequal bore
dia. in plane
Vdp
Radial runout
of inner ring
Kia
Over
Inc.
Max.
Min.
Max.
Max.

-
10
18
31.75
50.8
10
18
31.75
50.8
80
+15
+15
+18
+21
+24
0
0
0
0
0
10
10
12
14
16
10
15
18
20
25

 

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