SEAL TB

The TB profile is a radial shaft seal, consisting of a single outer metal cage, a primary sealing lip with an integrated garter spring, and a dust lip that acts as a protector against dirt accumulation from the outside.

CHARACTERISTICS

Superior radial rigidity, especially for large diameters.
Good stability when assembled, to prevent the rebound effect.
Sealing for low and high-viscosity fluids.
Modern primary sealing lip design to achieve low radial forces.
Protection against unwanted airborne contaminants.

See our Installation guide for oil seals to perform a correct installation of the seal.

ø	ºC	bar	m/s
10-790 mm	-55ºC/225ºC	≤0.3 bar	≤10 m/s

MATERIALS

Elastomer

NBR 70-75 Shore A

FKM 75-80 Shore A

VMQ 70-75 Shore A

ACM 70-75 Shore A

EPDM 70-75 Shore A

HNBR 70-75 Shore A

Metal casing

AISI 1060-90 - AISI 304 - AISI 316

Spring

AISI 1060-90 - AISI 302 - AISI 304 - AISI 316

DIN 3761 BS
CORTECO – B1SL
SIMRIT – B1USL
TRELLEBORG – TRD
STEFA – BC
PAULSTRA – EEL

TOLERANCES FOR THE OUTSIDE DIAMETER OF THE OIL SEAL

Housing diameter	Metal cage	Elastomeric coating	Housing with grooves
≤50.0	+0.10 / +0.20	+0.15 / +0.30	+0.20 / +0.40
<50.0 ≤80.0	+0.13 / +0.23	+0.20 / +0.35	+0.25 / +0.45
<80.0 ≤120.0	+0.15 / +0.25	+0.20 / +0.35	+0.25 / +0.45
<120.0 ≤180.0	+0.18 / +0.28	+0.25 / +0.45	+0.30 / +0.55
<180.0 ≤300.0	+0.20 / +0.30	+0.25 / +0.45	+0.30 / +0.55
<300.0≤500.0	+0.23 / +0.35	+0.30 / +0.55	+0.35 / +0.65
<500.0 ≤630.0	+0.23 / +0.35	+0.35 / +0.65	+0.40 / +0.75

TOLERANCE FOR THE INNER DIAMETER OF THE SEAL

The inner diameter of the sealing lip is always smaller than the shaft diameter. Depending on the shaft size, the sealing lip diameter is generally between 0.8 and 3.5 mm smaller than the shaft diameter.

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