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Thomson RoundRail Linear Guides and Components
Metric Ball Bearing Bushing
Metric – Accessories
External Seals
External Seals for Super Smart and MultiTrac Closed Ball Bushing Bearings
Double-acting
seals for use in fixed diameter housings.
(Dimensions in mm)
Part Number Use with Ball Bushing Bearing
Number
Nominal Shaft
Diameter T
Nominal (1)
Housing
Diameter
D
SM 08 SP M08 or MA M08 8 3,0 16
SM 12 SP M12 or MA M12 12 3,0 22
SM 16 SSE M16 or MA M16 16 3,0 26
SM 20 SSE M20 or MA M20 20 4,0 32
SM 25 SSE M25 or MA M25 25 4,0 40
SM 30 SSE M30 or MA M30 30 5,0 47
SM 40 SSE M40 or MA M40 40 5,0 62
External Seals for Super Smart and MultiTrac Adjustable Ball Bushing Bearings
Double-acting
seals for use in adjustable diameter housings. Series ADJ
seals have a radial slot through the
circumference to facilitate diameter adjustment.
(Dimensions in mm)
Part Number Use with Ball Bushing Bearing
Number
Nominal Shaft
Diameter T
Nominal (1)
Housing
Diameter
D
SM 08 ADJ SP M08 or MA M08 8 3,0 16
SM 12 ADJ SP M12 or MA M12 12 3,0 22
SM 16 ADJ SSE M16 or MA M16 16 3,0 26
SM 20 ADJ SSE M20 or MA M20 20 4,0 32
SM 25 ADJ SSE M25 or MA M25 25 4,0 40
SM 30 ADJ SSE M30 or MA M30 30 5,0 47
SM 40 ADJ SSE M40 or MA M40 40 5,0 62
External Seals for Open Type Super Smart and MultiTrac Ball Bushing Bearings
Double-acting
seals for use in open type housings.
(Dimensions in mm)
(1) For use in tolerance zones up to H7.
Part Number Use with Ball Bushing Bearing
Number
Nominal Shaft
Diameter T Free Diameter
D
SM 12 OPN SP M12 or MA M12 12 3,20 22
SM 16 OPN SSE M16 or MA M16 16 3,20 26
SM 20 OPN SSE M20 or MA M20 20 4,20 32
SM 25 OPN SSE M25 or MA M25 25 4,20 40
SM 30 OPN SSE M30 or MA M30 30 5,15 47
SM 40 OPN SSE M40 or MA M40 40 5,15 62
