8
141
□320
260
220
200
14
0
80
Ø25
320
∅60/2.5
12
0
∅34
160
103.5
14
Ø34
160
103.5
12
0
Ø60/2.5
14
Installing the Timing Belt
Application options
In combination with Profile 8 80x40 as a support profile:
In combination with Profile 8 80x80 as a support profile:
In combination with Profile 8 120x80 as a support profile:
Timing-Belt Reverse Unit 8 80 R25 with Bore
Timing-Belt Reverse Unit 8 80 R25 with Bore
It may be necessary to open Timing Belt Reverse Unit 8 80 R25 in order to
insert or replace the Timing Belt in it. To do this, remove all the screws. Never
use a screwdriver or similar tool to prise open the casing of Timing-Belt Reverse
Unit 8 80 R25 at its joins, as you may unintentionally break off the belt cover.
Separate the two halves of the casing by gently tapping the hub of the timing
pulley (use plastic punches). Once the casing is open, thread the Timing Belt
through (180° reversal with emergence dimension of 40 mm or 80 mm) and
then close Timing Belt Reverse Unit 8 80 R25 again.
Recommended tightening torques for closing the Reverse Unit:
Button-Head Screw M8 = 16 Nm
Hexagon Socket Head Cap Screw M6 = 10 Nm
Caution: If the Timing Belt is to be fed out of the Reverse Unit with an emer-
gence dimension of 40, insert both ball bearings into the two halves of the
Reverse Unit casing so that the back (smooth side) of the Timing Belt is routed
over the ball bearing outer ring.
In combination with Profile 8 200x80 as a support profile, guide carriages from Line 8 and Double-Bearing Unit 8 D25:
Once the carriage has been fitted to the support profile and adjusted to elimi-
nate play, the Timing-Belt Reverse Units can be prepared.
Timing-Belt Reverse Units 8 80 R25 with Bore for an expanding hub coupling
are used to drive or reverse Timing Belt R25 T10 to build Linear Units com-
bined with guides, Gearboxes and Drive Units.
