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Timing belt, Disc coupling, Sprocket wheel, Pillow block, Belt drive
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Te l : + 4 4 1 2 1 3 6 0 0 1 5 5 F a x : + 4 4 1 2 1 3 2 5 1 0 7 9 E m a i l : s a l e s@c r o s s m o r s e . c o m
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12016 38.1 105 186 156 81 105 230 24 29.0
12020 50.8 120 178 175 77 105 278 24 53.0
12024 50.8 150 231 232 103 105 326 24 76.0
12030 50.8 200 231 302 103 105 398 24 137.0
Base Approx.
Cover To suit all couplings Weight
No. kg
AL 40 AL 4016K LRC 4016 51 102 0.45
AL 50 AL 5016K LRC 5016 60 130 0.70
AL 50 AL 5018K LRC 5018 TB 5018 60 130 0.70
AL 60 AL 6018K LRC 6018 75 162 1.25
AL 80 AL 8018K LRC 8018 102 208 2.40
AL 80 AL 8020K LRC 8020 TB 8020 102 208 2.35
Cover
No.
To Suit Couplings B F App. Weight
LRC TB LSC mm mm kg
SA 4012C 4012 38.9 75 0.06
SA 4016C 4016 4016 4-16 38.9 93 0.08
SA 5016C 5016 4-20 47.0 110 0.10
SA 5018C 5018 5018 47.0 121 0.12
SA 6018C 6018 6018 4-28 56.6 142 0.16
SA 6022C 6022 6022 56.6 166 0.22
SA 8018C 8018 8018 79.5 186 0.35
SA 8020C 8020 8020 79.5 203 0.40
SA 12016C 12016 117.6 246 0.53
Coupling Bush Max. Bore
No. Size mm
Dimensions in mm
A B C D E F G H(1)
Approx.(2)
Weight
kg
TB 4016 1108 28 51 52 50 22 33 77 7 20 0.8
TB 5018 1610 42 57 75 75 25 38 106 7 27 2.6
TB 6018 2012 51 72 90 87 32 44 126 8 35 2.9
TB 6022 2517 63 98 102 102 45 44 150 8 42 4.1
TB 8018 2517 63 106 108 100 45 71 167 16 42 6.8
TB 8020 3020 76 116 136 136 50 71 183 16 53 8.4
LRC 4012 10.0 22 63 33 28 33 61 7 0.6
4016 12.0 34 63 50 28 33 77 7 1.2
5016 15.9 45 81 64 37 38 96 7 2.2
5018 19.0 50 91 75 42 38 106 7 2.7
6018 19.1 57 106 87 49 44 126 8 5.1
6022 24.0 68 108 102 50 44 150 8 7.4
8018 25.4 80 136 117 60 71 167 16 11.4
8020 35.0 90 148 136 66 71 183 16 17.6
Approx.
Weight
kg
Dimensions mm
A B D E F G
Coupling Min Bore Max. Bore
No. mm mm
Roller Chain Couplings
LRC Plain Bore - Roller Chain Coupling Dimensions
Available from stock with pilot bore, or can be quickly modified to customers shaft
requirements; standard finished bores being to H8 tolerance.
TB Taper Bore - Roller Chain Coupling Dimensions
Two types of sprockets are available; standard TBH with bushes mounted from the hub end,
and type TBF where bushes are mounted from the flange (tooth) end of the sprocket.
Coupling Covers
Chain Coupling Covers are used to provide protection for both the duplex roller chain and sprocket teeth on applications where
couplings are exposed to corrosive or abrasive atmosphere, or to retain lubrication in the chain with high shaft speeds. Two types
of cover are offered; a low cost spun aluminium cover for general use, or a fully sealed split cast aluminium cover on more
demanding applications.
Stock Coupling Dimensions
Stock Coupling Dimensions
Stock Spun Aluminium Covers
(1) Space required to remove hub using jack screw with shortened hex. key.
(2) For coupling using 2 off TBH Sprockets - less taper bushes.
Note: To order TB coupling, hub type must be specified by suffix after coupling.
ie:- TB 6018 FH is coupling with one TBF and one TBH hub.
Their light weight and cost make spun
aluminium covers the ideal choice for
protection of roller chain couplings.
The two spun halves simply clip
together to provide a protective cover
for the chain. A felt pad located
between chain and cover retains
grease lubrication. Rounded exterior
of the cover combines safety with neat
appearance. Covers are also suited to
the LSC inverted tooth couplings. For
applications where aluminium is not
permitted, spun steel covers of same
dimensions can be supplied to order.
Cast Aluminium Covers
For more demanding applications,
cast aluminium covers extend life of
couplings by providing continuous
lubrication and full protection from
abrasive elements. The two halves fit
around the coupling and connect by
‘Nyloc’ cap-head bolts. Neoprene
seals are fitted to seal between
sprocket hub and cover. These covers
are fitted after coupling is fully
installed on shafts.
Caution:- Never operate at rim speeds
above 25 M/s.
Adaptor Kit
No.*
B
mm
F
mm
*Accessory Kit includes two seals for specific hub size, two gaskets and
hardwear necessary to install cover.
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