34mm ID Nitrile Rotary Shaft Oil Seal — Double Lip TC R23 with Garter Spring

Match the inner diameter (ID) to your shaft diameter — this product is fixed at 34mm (≈1.339"). Then measure your housing bore for the OD and your housing groove depth for the height. Available ODs range from 44mm to 57mm and heights from 5mm to 12mm. When in doubt, consult your equipment's service manual or contact us with your make/model to confirm the correct size.

TC-type rotary shaft oil seals are generally designed for low-to-medium pressure applications. They are typically rated for shaft speeds up to around 4–8 m/s and static pressures up to approximately 0.3 bar, though exact limits depend on the specific OD/height combination and operating conditions. Contact us to confirm suitability for high-speed or high-pressure environments.

Nitrile (NBR) rubber generally offers good resistance to water, oil, and grease, making it suitable for many outdoor and wet applications. However, it is not recommended for prolonged exposure to ozone, strong UV, or certain synthetic fluids. For harsh outdoor environments, verify compatibility with your specific media before installation.

This seal fits any round shaft with a 34mm (≈1.339") outer diameter, regardless of thread standard. It is compatible with metric shafts and generally interchangeable with shafts following ISO, DIN, and similar standards at that diameter. Always verify the shaft surface finish — typically Ra 0.2–0.8 µm — for optimal sealing performance.

A TC double-lip seal provides two sealing surfaces: the primary lip retains lubricant and the secondary (dust) lip excludes contaminants from the outside. This makes it the preferred choice when the shaft is exposed to dirt, dust, or moisture — common in agricultural machinery and outdoor power equipment. Single-lip seals are generally used in cleaner, enclosed environments where contamination ingress is not a concern.

The garter spring maintains consistent radial pressure of the primary sealing lip against the shaft, compensating for minor shaft runout and lip wear over time. It is an integral part of the seal assembly and is not designed to be replaced separately — the entire seal should be replaced as a unit during maintenance.

Nitrile (NBR) rubber typically operates in a temperature range of approximately -40°F to +250°F (-40°C to +120°C). Performance may degrade outside this range. For high-temperature applications above 250°F, a Viton (FKM) seal may be more appropriate — contact us for alternatives.