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Keystone
Simply Castors &Wheels
Wheels
WSU Series
Wheel
Dia.
(mm)
Tread
Width
(mm)
Bore Size
(mm)
Hub
Length
(mm)
Load Cap.
(kg)
Bearing
Type
Catalogue
Reference
USED IN CASTOR
SERIES
75
29
12
39
150
Plain
WSU3M12
61
100 43
15
48
295
Roller
WSU4RBM15
SL, 61, 22
125 35
15
48
325
Roller
WSU5RBM15
SL, 61, 22
125 35
25
50
325
Roller
WSU5RBM25
-
125 35
25.4
50
325
Roller
WSU5LRB
-
150 38
20
60
600
Roller
WSU61RBM20
SL, 61, 22
150 45
20
60
725
Roller
WSU6RBM20
KV, GT, JA. 55
150 45
12.7
62
725 Taper Roller
WSU6TM
*
KV, GT, JA
150 45
25
60
725
Roller
WSU6RBM25
-
150 45
25.4
60
725
Roller
WSU6LRB
-
200 51
20
60
1045
Roller
WSU8RBM20
KV, GT, SL, JA, 55
200 51
12.7
62
1045 Taper Roller
WSU8TM
*
KV, GT, JA
200 51
25
60
1045
Roller
WSU8RBM25
-
200 51
25.4
60
1045
Roller
WSU8LRB
-
200 76
12.7
106
1270 Taper Roller
WSU83TM
*
KV
200 76
19.1
92
1270 Taper Roller
WSU108TM
EH
250 51
12.7
62
1135 Taper Roller
WSU10TM
*
KV, GT
250 51
25
60
1135
Roller
WSU10RBM25
KV, GT
250 51
25.4
60
1135
Roller
WSU10RB
-
250 51
31.8
60
1135
Roller
WSU10LRB
-
250 76
12.7
106
2270 Taper Roller
WSU103TM
*
KV
250 76
19.1
92
2270 Taper Roller
WSU110TM
EH
250 76
31.8
92
2950 Taper Roller
WSU210TM
EH
250 76
38.1
95
2950
Roller
WSU210RB
-
300 57
12.7
62
1270 Taper Roller
WSU12TM
*
KV
300 57
25
60
1270
Roller
WSU12RBM25
KV
300 57
25.4
60
1270
Roller
WSU12RB
-
300 57
31.8
60
1270
Roller
WSU12LRB
-
300 76
31.8
92
2950 Taper Roller
WSU212TM
EH
300 76
38.1
95
2950
Roller
WSU212RB
-
300 102 31.8
118
4080 Taper Roller
WSU312TM
EH
400 127 34.9
143
6120 Taper Roller
WSU516TM
EH
Conversion mm/ins :
12.7 = 1 / 2
,
19.1 = 3 / 4
,
25.4 = 1
,
31.8 =1 1 / 4
,
38.1 =1 1 / 2
,
34.9 =1 3 / 8
.
WSU Series Heavy Duty
wheels
with Roller and Taper
Roller Bearings
Red polyurethane tyre, red
cast iron centre.
*
These wheels are fitted with taper roller bearings for use in KV,
KVF (and possibly GT and GTF) castors and have axle tubes to
reduce the bore from the 3/4@ of the inner component of the
taper roller bearing to the 12mm diameter of the high tensile
axle bolt used on all KV and KVF series castors.
The axle tubes are threaded at each end and fitted with thin
adjusting nuts, which are screwed up finger tight during
manufacture. When fitting these wheels into castors it is vitally
important that the adjusting nuts are “backed off” slightly to the
point when, with the 12mm HT bolt fully tightened, the wheel
has just perceptible sideways ‘play’. Until the knack of correct
adjustment is acquired it may take several steps to achieve the
correct amount of ‘play’.
NB. Wheels with a suffix TM which are not identified with an
*
are for use in EH and EHF series castors. They are supplied with
taper roller bearing cups ready fitted, and with the cones, seals
and washers loose. It is vitally important to provide means of
fine bearing adjustment to give just perceptible sideways ‘play’.
‘Preload’ or excessive clearance will inevitably result in bearing
failure.
As these wheels are designed for use on axles supported in castor
forks both ends, they will not be able to carry their full rated
weights if they are mounted on cantilever axles.
Wheel
Dia.
(mm)
Tread
Width
(mm)
Bore Size
(mm)
Hub
Length
(mm)
Load Cap.
(kg)
Bearing
Type
Catalogue
Reference
USED IN CASTOR
SERIES
150 45
12
61
725 Ball Journal
WSU6BJM12
SL, GT, KV
150 45
20
57
725 Ball Journal
WSU6BJM20
-
150 45
25
57
725 Ball Journal
WSU6BJM25
-
200 51
12
61
1045 Ball Journal
WSU8BJM12
SL, GT, KV
200 51
20
57
1045 Ball Journal
WSU8BJM20
-
200 51
25
57
1045 Ball Journal
WSU8BJM25
-
200 76
25
92
1270 Ball Journal
WSU83BJM25
-
250 51
12
61
1135 Ball Journal
WSU10BJM12
GT, KV
250 51
25
57
1135 Ball Journal
WSU10BJM25
-
300 57
12
61
1270 Ball Journal
WSU12BJM12
KV
300 57
25
57
1270 Ball Journal
WSU12BJM25
-
WSU Series Heavy Duty wheels
with Ball Journal Bearings
Red polyurethane tyre, red cast iron centre.
Flexello superthane polyurethane wheels combine the load capacity and wear resistance of cast iron with all the advantages of a
soft resilient tread. High load capacity is coupled with a comparatively low tractive resistance.
The tear strength is two to five times greater than
that of natural rubber and the high abrasion
resistance ensures a useable life 10 times that
of rubber.