JAPAN BOBBIN CASE Baby Lock BLJ18 Jewel BLCJ18 Crown Jewel Quilting Machines

Description

This Listing is for
1 BRAND NEW
Highest Quality LARGE BOBBIN CASE that fits
Handi Quilter Quilting Machines
Baby Lock BLJ18 Jewel, BLCJ18 Crown Jewel, and BLCJ18-2 Crown Jewel 2
MADE IN JAPAN.
BRAND NEW 1" Diameter "M" Style Bobbin Case.
These are Bobbin Cases with
NO BACK LASH spring inside
.
A special
anti-spin spring
is built into the bobbin case assembly to
prevent the bobbin from spinning
when the machine is suddenly stopped. If the bobbin spins when the machine stops, there is a good chance that a single loop of thread will fall out of the bobbin case. This condition will cause the thread to snap as soon as the operator begins to sew.
No Back Lash
Bobbin Cases are also
required
by sewing machine manufacturers for use in machines with
bobbin thread undertrimmers
. The anti-spin spring
adds slight additional tension
to the bobbin thread and
stabilizes the bobbin thread
just prior to actuation of the
trimmer mechanism
.