NSK UHR, UHR35, UHR50T, UHR50C, VR-E Service Manual

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SM-H0004_E Rev.1

SERVICE MANUAL

For

UHR and VR series

Straight Handpiece

Parts List No.

UHR35: D-079

UHR50T: D-061

UHR50C: D-062

VR: D-036

VR-E: D-082

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Notice

This manual applies to both UHR series and VR series.
UHR series and VR series are identical in construction, with only exception of the outer design and
dimensions of the spindles; and same tools are used.

1. TOOLS REQUIRED

Dummy Bur and Tweezers are required.

T-2（Pliers）

Emery Cloth

T-35 (Hammer)

DT-41

DT-145 DT-203

DT-267 (Vise)

DT-179

DT-131

H124 751

(Angled Wrench (9mm))

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2. DISASSEMBLY PROCEDURE

Caution

Disassemble on a tray to prevent losing parts.
Replace the O-ring if any damages found during disassembling.

2-1 Remove the Nose Hood
Set DT-203 on the rear end of Bur Lock Ring. Align hollows of Spindle with slots of Nose Hood and slide H124-751
into the alignment. Hold H124-751 with T-2 and unscrew it to remove the Nose Hood from the Bur Lock Ring. By
removing the Nose Hood, a Spindle Assembly, a F. Preload Spring Washer, a Preload Spring, and a Preload Spring
Washer are drawn from the Bur Lock Ring.

(In case of VR series)

Hold the Sheath Ass’y with T-2 on emery cloth between. Align hollows of Spindle with slots of Nose Hood and slide
H124-751 into the alignment. Hold H124-751 with T-2 and unscrew it to remove the Nose Hood from the Sheath Ass’y.

Angled Wrench Emery Cloth

T-2