SKF Nitrile Rubber (NBR) Seal, 38 mm ID, 52 mm OD, 7 mm

This seal is a rotary shaft sealing solution designed to separate rotating and stationary machine parts and retain lubricants in dynamic assemblies. It features a rubber outer diameter and an elastomeric sealing lip with an auxiliary non-contacting lip and garter spring to maintain effective contact with the shaft in the presence of contamination. The product is suited to oil or grease sealing duties within motors, gearboxes and rotating equipment where controlled clearance and contaminant exclusion are required.

• Permissible circumferential speed 6.72 m/s supports moderate shaft velocities
• Operational temperature range −40°C to 100°C allows varied thermal conditions
• Short-term thermal tolerance 120°C enables transient overload protection
• Non-contact auxiliary lip improves contamination exclusion under dust exposure
• Garter spring maintains consistent lip pressure across shaft variations
• Pressure differential capacity 0.03 N/mm assists low-pressure retention

• Suitable for sealing shafts in electric motors and motor assemblies
• Ideal for use in gearboxes and reduction drives requiring oil retention
• Used with bearings in rotating automation equipment as a bearing seal
• Can be used for replacement sealing in industrial pumps and actuators
• Suitable for maintenance of electronics cooling fans and small drives

It is manufactured to fit a shaft diameter of 38mm and a housing bore of 52mm.

Continuous circumferential speed is limited to 6.72 m/s corresponding to a rotational speed limit of 3,360 r/min.

The elastomeric lip profile and garter spring accommodate minor misalignment by preserving contact and lip conformity.

The sealing lip is MADE from nitrile rubber (NBR) and the outside diameter is rubber with metal reinforcement for housing fit.

A metal sleeve product is referenced as a compatible accessory to protect shaft surfaces during installation.