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SKF 11846 rotary shaft seal, transparent nitrile rubber, 1.19 by 1.996 by .25 in

SKF

SKF 11846 Rotary Shaft Seal 1.19 x 1.996 x .25 in HM1 R NBR

SKU CH-K7Z5-C0J21

Rotary shaft seal with 1.19 in bore, 1.996 in outside diameter and .25 in width for grease-lubricated agricultural machinery

  • ColorTransparent
  • Width1/4"
  • HM1 R design seals rotating shafts in grease-lubricated agricultural machinery
  • Nitrile rubber lip resists animal oils, vegetable oils, diesel, gasoline, greases, hot water and mineral oils
  • Single-lip contact seal rated to 3 psi maximum pressure
  • 19 in bore fits 1.19 in shaft diameters with 1.996 in housing
  • 3,665 RPM speed limit suits moderate-speed engine applications

Precision sealing for agricultural machinery

The SKF 11846 rotary shaft seal fits a 1.19 in shaft and a 1.996 in bore with a .25 in width. Its HM1 design uses a single nitrile rubber lip rated for 3 psi maximum pressure. The seal handles animal and vegetable oils, diesel, gasoline, greases, hot water, light heating oil and mineral oils in grease-lubricated equipment.

Upgrading from worn or leaking seals

Replace this component when the original seal hardens, cracks or allows fluid loss at speeds up to 665 RPM. The jump is worth it when the mating surface remains smooth and the application stays within the 3 psi pressure limit. The uncoated case and absent spring suit static or low-pressure housings where a simple contact seal is specified.

Limits of the HM1 contact seal

The single lip and nitrile material cap continuous use at 665 RPM and 3 psi. Higher speeds, vacuum conditions or aggressive chemicals exceed the design envelope. The inch-dimensioned housing must match the 1.19 in inner diameter and 1.996 in outer diameter precisely; metric bores or oversized shafts will not seal.

Highlights

  • HM1 R design seals rotating shafts in grease-lubricated agricultural machinery
  • Nitrile rubber lip resists animal oils, vegetable oils, diesel, gasoline, greases, hot water and mineral oils
  • Single-lip contact seal rated to 3 psi maximum pressure
  • 19 in bore fits 1.19 in shaft diameters with 1.996 in housing
  • 3,665 RPM speed limit suits moderate-speed engine applications

Specifications

BrandSKF
ColorTransparent
Width1/4"

Questions about this item

What bore diameter fits the 1.996 in outside diameter of the SKF 11846 seal?

The seal requires a housing bore of 1.996 in for a proper press fit. Ensure the bore surface is clean and free of burrs before installation.

Which direction should the single lip face when pressing in the HM1 design seal?

Install with the sealing lip facing the fluid side. The HM1 design has no spring, so lip orientation is critical to prevent leakage.

When should the NBR lip be replaced given the 3,665 RPM speed limit?

Replace the seal if lip wear, hardening, or leakage appears. NBR material degrades faster at high speeds and temperatures, so inspect during routine maintenance.

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