Industrial seal self study guide - SKF.com

Installation (cont.)
Split Seal Connectors
There are three types of stainless steel spring connectors
for SKF split seals:
• Control-wire
• Hook and eye
• Threaded
Control-Wire Connector
Making the split seal easy to install, the control-wire connector offers
these features, benefits and limitations:
The control-wire connector fits into
the core of the garter spring (fig. 8k).
• The connector wire slips into the core of the garter spring for
connection (fig. 8k).
• The Spring-Kover keeps the spring in place.
Of the three types of connectors, this provides the least secure spring
connection. The seal ends might not join completely due to the ease of
assembly feature.
It is recommended only for horizontal shafts running at speeds below
1500 fpm (7.62 m/s), retaining grease. It is used only with SKF’s HS7
seal design.
The hook and eye provides positive
spring connection on seals for larger
(18 diameter) shafts (fig. 8l).
Threaded connectors provide positive
spring connection on seals for shaft
diameters under 18 (fig, 8m).
Hook and Eye Connector
The hook and eye (fig. 8l) assembles easier than threaded connectors,
and provides a positive spring connection. It is used only on seals for
shaft diameters over 18.001 inches (457.23mm), or by special order.
Threaded Connectors
Most difficult to install of the three, threaded connectors (fig. 8m)
provide the most positive connection of the spring. They are used on
smaller seals, for shaft diameters up to 18 inches (457.22mm) or by
special order.
74