Timken V-Lock Installation Manual

Installation Guide

Timken® Spherical Roller Bearing Solid-Block Housed Unit

V-Lock Series

Wedge Nut

Wedge

Housing

Insert

Sleeve

Sleeve Nut

*Only supplied with

double-nut units

Setscrews

Double-nut “QVV” Single-nut “QV”

Setscrews

Wedge Nut

Wedge

Housing

Insert

Sleeve

Setscrews

INSTALLATION GUIDE

V-LOCK SERIES, SPHERICAL ROLLER BEARING SOLID-BLOCK HOUSED UNIT

Timken solid-block housed unit V-Lock bearings are easy to install and remove
because of their unique adapters.

Please complete the following steps to install and/or remove Timken steel housed
unit V-Lock bearings. (Refer to fig. 1.)

INSTALLATION

1. Ensure that the shaft is clean, free from nicks and burrs, straight and
of proper diameter. See table 1 for recommended shaft tolerances.
The housed unit should not be mounted on a worn section of the shaft.
Use of shafts with hardness greater than Rc 45 will reduce the
effectiveness of locking devices.

2. If using an open-end cover, slide the open-end cover/seal combination
into position on shaft.

3. Remove the wedge assembly from the sleeve by unscrewing the wedge
nut. See fig. 1.

4. Clean oil off of the sleeve and wedge.

5. Apply a thin oil film to the shaft only.
For QV housed units:

- Slide the sleeve, non-threaded end first, into position on shaft.
For QVV housed units:

- Make sure the sleeve nut is flush with the end of the sleeve.

- Slide the sleeve/nut assembly, nut end first, into position on the shaft.

6. Slide the housed unit into place over the sleeve.

7. Loosely install the housed unit mounting bolts. Check the housed unit
alignment (fig. 2). Verify mounting surfaces are in the same flat plane to
help make sure good alignment is achieved. If shimming is required to
minimize misalignment, use full shims across entire housing base where
possible (fig. 2). Washers should be properly sized to bold diameter and
should not be an SAE grade, which is smaller.

- Seat the sleeve as best as possible into mounted unit.

8. Slide the wedge and wedge nut into the housed unit over the sleeve.

9. Tighten the wedge assembly by turning the wedge nut clockwise until tight.
Please note that it is designed to eliminate over-tightening.

10. If installing double-nut housed unit, tighten the sleeve assembly by turning
the sleeve nut clockwise until snug.

11. Tighten both the wedge nut and sleeve nut set screws alternately
according to table 2.

12. Install the housed unit mounting bolts. Check the housed unit alignment.
Verify mounting surfaces are in the same flat plane to help make sure good
alignment is achieved. If shimming is required to minimize misalignment,

use full shims across entire housing base
where possible (fig. 2). The bolts then need
to be alternately torqued securely to their
mounting supports.

13. Tighten the housed unit mounting bolts.

14. If using covers:

- Make sure the mating surface of cover and
retaining nut are clean and dry.

- If using a urethane cover, slightly roughen the
mating surface of the cover.

- Place a 1⁄8 in. - 1⁄4 in. bead of polyurethane
adhesive sealant on the mating surface of the
cover.

- Align cover mounting holes with the mounting
holes on the retaining housing nut (make
sure that the grease fitting on the cover is
accessible when doing so).

- Apply and tighten cover mounting hardware.

REMOVAL

1. Remove covers, if applicable, by removing
cover hardware and disengaging cover from
housed unit retaining nut.

2. Loosen the setscrews on the wedge nut.

3. Turn the wedge nut counterclockwise to
remove the wedge from the locked position.

4. Completely remove the wedge/wedge nut
assembly.

For QV housed units:

- Remove the bearing and sleeve from the shaft.
For QVV housed units:

- Loosen the setscrews on the sleeve nut.

- Turn the sleeve nut clockwise to un-seat the

sleeve.

- Remove the bearing and sleeve/sleeve nut

from the shaft.

Fig. 1. V-Lock insert components.