Disc Bobbins - CP2494 Type

The "Float in disc" range of bobbins has been improved and rationalised.
The most obvious changes are the new part numbers, an identification letter marked on the bobbin to identify the length and the removal of the flats on the bobbin head. The head flange thickness has also been increased from 2.0mm to 2.5mm, and the parts will be manufactured from a tougher and more durable material. The new part numbers are the same as the old part numbers but with a suffix added so they are easily recognisable.
CP2494-1341MD & CP2494-1342MM "Float in the Disc" have been added to the range.
CP2494-594 bobbin has been made obsolete, use CP2494-593MB.
Bobbins are also available in kit form. Kit comprises 12 x CP2494-117 nut, 12 x CP2494-118 washer, 12 x CP3845-100, -101 or -102 6Lobe bolts and 12 x relevant bobbin. (see table).
Special Note:
- 'S' suffix on the end of bobbin kit part number denotes shorter (0.875) CP3845-100 bolt included.
- 'L' suffix on the end of bobbin kit part number denotes longer (1.062) CP3845-102 bolt included.

 

"Float in the Disc" Bobbins
Old
Part
Number
New
Part
Number
Letter
ID
Dimension
'L'
Disc
Flange
Thickness
Nominal
Float
Bobbin
Kit
CP2494-
595
CP2494-
595MA
A
4.7/4.75mm
4.3/4.35mm
0.4mm
CP2494-
595K08S or -595K12
CP2494-
593
CP2494-
593MB
B
5.2/5.25mm
4.8/4.85mm
0.4mm
CP2494-
593K12
CP2494-
592
CP2494-
592MC
C
5.4/5.45mm
5.0/5.05mm
0.4mm
CP2494-
592K12
N/A
CP2494-
1341MD
D
5.8/5.85mm
5.6/5.65mm
0.2mm
CP2494-
1341K12
CP2494-
591
CP2494-
591MH
H
5.9/5.95mm
5.5/5.55mm
0.4mm
CP2494-
591K12
CP2494-
589
CP2494-
589MJ
J
6.0/6.05mm
5.6/5.65mm
0.4mm
CP2494-
589K12 or K12L
CP2494-
626
CP2494-
626ML
L
6.3/6.35mm
5.6/5.65mm
0.7mm
CP2494-
626K12
N/A
CP2494-
1342MN
M
6.5/6.55mm
6.3/6.35mm
0.2mm
CP2494-
1342K12
CP2494-
504
CP2494-
504MP
P
6.7/6.75mm
6.3/6.35mm
0.4mm
CP2494-
504K12 or K12L


Bobbin drawing

Download "Float In Disc" Installation Drawing:
CP2494-2000CD



Float in the Bell Mounting

The Float in the bell bobbins are shown in the table below. Kits contain bobbins, bolts, nuts x 12 & washers x 24.

Part Number
Bell Flange Thickness
Dimension 'L'
Nominal Float
Kit Part Number
CP4015-101MA
8.05/8.00mm
8.25/8.20mm
0.25/0.15mm
CP2494-29
CP4015-106MB
N/A
8.05/8.00mm
N/A
N/A
CP4015-107MC
N/A
7.95/7.90mm
N/A
N/A

 

Float in Bell Bobbin

 

Download:- "Float In The Bell" Installation Drawing: CP2494-2020CD

Note: Disc mounting tightening torque - 14Nm (10.5lb/ft)