WAVE-SPRING SEALS

HJ977N

  • O-ring, Wave-Spring Pusher
  • To DIN EN 12756 Standards
  • Balanced
  • Bi-directional
  • Shrink-Fitted - SiC Rotary
  • Solid - SiC Stationary

HJ977N is a DIN EN 12756 compliant

mechanical seal for metric shafts,

based on the industry standard

"HJ977GN" design, except the stationary is available standard as solid SiC instead of shrink-fitted.

 

It is balanced to suit straight shafts. It is o-ring mounted and relies on a one-piece, sinuous wave-spring located in the rotary away from the product, eliminating the possible effects of clogging.

 

It is suitable for solids-containing or

high-viscosity media.

  • Operating conditions¹

Temperature:

Pressure:

Speed:

-50°C to +220°C

< 25 bar, 360 psi, 2.5 MPa

< 20m/s, 4000 fpm

rpm < 1200000/(3.14 x D1)

PARTS

A

B

C

D

E

F

G

H

I

Stationary O-ring

Stationary Face / Ring

Rotary Face / Ring

Rotary Wave-Spring

Rotary Holder

Rotary Drive Collar

Rotary O-ring

Rotary O-ring

Rotary Set Screws

SEAT OPTIONS

G46

 

G16

 

standard - solid SiC

(optional)  - shrink-fit (SiC)

equiv. to: HJ97GN5

solid SiC or shrink-fit (SiC)

EQUIVALENT

HJ977GN

Sterling GNZ

M010

Type 40S

RB697

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.

HJ977N - Data Sheet
  • Material options

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

shrink-fit (SiC)

SiC

N, V or EP

304S.S.

HJ977GN

PRODUCT INFORMATION

DIMENSIONS

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