Page 346 - Rollingbearings

2 Insert bearings (Y-bearings)
SKF ConCentra insert • provide low noise and vibration levels, and Insert bearings with
virtually eliminate fretting corrosion
bearings • are capped on both sides with a rugged a tapered bore
standard seal and an additional plain
• are suitable for applications for both con- sheet steel linger (Standard seals with • are suitable for applications for both con-
2 stant and alternating directions of rotation additional lingers) stant and alternating directions of rotation
• provide an easy, quick and reliable way to • have two lubrication holes in the outer • it the following adapter sleeves:
lock a bearing onto a shaft, even in appli- ring as standard, one on each side, – H 23 series for metric shafts
cations where there are heavy loads and/ positioned 120° apart – HA 23 and HE 23 series for inch shafts
or high speeds • can be supplied without lubrication holes • permit the full limiting speed to be
• permit the full limiting speed to be on request (designation sufix W) achieved when mounted on an adapter
achieved, even where using commercial sleeve, even where using commercial
grade shafts For demanding operating conditions that grade shafts
• have an inner ring symmetrically extended occur in agricultural applications, such as • have an inner ring symmetrically extended
on both sides (ig. 15, bearing series combines and balers, harvesters and disk on both sides and a tapered bore (taper
YSP 2) harrows, SKF has designed the YSPAG 2 1:12) (ig. 18, bearing series YSA 2)
• comprise the patented SKF ConCentra bearing series (ig. 17). These bearings: • are capped on both sides with a rugged
locking technology, which is based on the standard seal and an additional plain
expansion and contraction of the following • are itted with a patented 5-lip seal (5-lip sheet steel linger (Standard seals with
two mating surfaces, which have precision- seals, page 346) additional lingers)
engineered serrations: • are supplied without any lubrication holes • have two lubrication holes in the outer
– the bearing bore in the outer ring ring as standard, one on each side,
– the external surface of the stepped positioned 120° apart
sleeve • can be supplied without lubrication holes
• provide a true concentric it on the shaft, on request (designation sufix W)
because when the grub screws in the
mounting collar are tightened, the inner The associated adapter sleeves must be
ring is axially displaced relative to the ordered separately from the bearings
stepped sleeve (ig. 16), forcing the bearing
inner ring to expand and the stepped
sleeve to contract evenly Fig. 16
SKF ConCentra locking technology

Prior to mounting After mounting

Fig. 15 Fig. 17 Fig. 18
Bearing in the YSP 2 series Bearing in the YSPAG 2 series Bearing with a tapered bore

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