CONICAL-SPRING SEALS

HU5

  • O-ring, Conical-Spring Drive
  • Shaft Rotation Dependant
  • To DIN EN 12756 Standards

EN 12756, except in fitting length.  It is based on the industry standard "Type 5" design, a conical spring-driven mechanical seal for metric shafts.

 

The spring provides both axial and rotational force being tightly wound in the direction of the rotating shaft. Left or right-hand winding springs must be specified.

 

L1k can be achieved with either a spacer (Sp.), or longer / shorter "5K" spring.

 

An optional "U.C.L." seat is available with an extended tail and anti-rotation pin slot.

PARTS

A

B

C

D

E

F

G

H

Stationary O-ring

Stationary Face / Ring

Rotary Face / Ring

Rotary O-ring

Rotary O-ring

Rotary Frame

Rotary Conical Spring

Spacer (optional)

SEAT OPTIONS

U.C.C.:

U.C.L.:

standard, no slot

extended tail w/ slot

EQUIVALENT

Uniten 5 / 5K

RB315 / RB315N

RB316 / RB316N

  • Operating conditions¹

DATA SHEET

Temperature:

Pressure:

Speed:

-30°C to +200°C

< 10 bar, 145 psi, 1 MPa

< 15m/s, 2000 fpm

rpm < 900000/(3.14 x D1)

HU5 - Data Sheet

¹Guide-values only (due to diversity of possible applications). Enquire for specific-use cases. Maximum values of each parameter cannot be applied together.

  • Material options

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

SiC or TC

CAB or SiC

N, V or EP

304S.S.

UNITEN 5

PRODUCT INFORMATION

DIMENSIONS

Dimensions refer to installed length, not 'free' length:

Additional sizes not typically stocked, therefore omitted.