Filled Kalsi Seal Sizes

Filled Kalsi Seals were developed to retain lubricant in lower pressure, higher speed non-abrasive applications. The C-shaped construction of the shell allows the use of a low modulus silicone energizer that minimizes contact pressure at the seal-to-shaft interface. As with other Kalsi-brand rotary shaft seals, the Filled Kalsi Seal incorporates hydrodynamic waves that cause the seal to hydroplane on a film of lubricant when rotation occurs. This combination of features reduces running torque and seal-generated heat significantly, compared to single material Kalsi Seals.

Additional sizes can be furnished, subject to a one-time tooling charge to help to defray associated engineering, machining and set-up expenses. Seal purchase orders and requests for quote should be sent to the attention of Seal Sales via fax at 281-240-0255, or by e-mail.

Nominal Inside Diameter Seal Part Number Seal Radial Depth D (inches)
Seal Axial Width (inches)
Gland Depth R (inches)**
Gland Width (inches) +0.005″ -0.000″**
1.500″ 38.10 mm 555-1 0.335 ±0.005 0.235 0.309 0.302
2.000″ 50.80 mm 555-2 0.335 ±0.005 0.235 0.309 0.302
  • To view the current rotary seal implementation guidelines (Kalsi Seals Handbook) in PDF format, click here.

** For gland details, see Chapter D5 of the Kalsi Seals Handbook.

Updated: December 12, 2018

Kalsi-brand rotary seals are offered for sale under the terms and conditions of the “Offer of Sale” that is included in the current revision of the Kalsi Seals Handbook.