EBL Extreme Bearing Spilt plummer block ss316

EXS Extreme Bearing pillow block stainless steel 316

EXG Extreme Bearing 3-hole flange unit ss316

EXP Extreme Bearing round 4-hole Flange Bearing unit SS316

EXT Extreme Bearing Take-up unit ss316

EBL Extreme Bearing Spilt plummer block ss316

EXS Extreme Bearing pillow block stainless steel 316

EXG Extreme Bearing 3-hole flange unit ss316

EXP Extreme Bearing round 4-hole Flange Bearing unit SS316

EXT Extreme Bearing Take-up unit ss316

EXW Extreme Bearing stainless steel 316 2-hole unit

EXC Extreme Bearing tapped base unit ss316

EXL Extreme Bearing 3-bolt bracket unit SS316

EXR Extreme Bearing SS316 Compact 2-bolts unit

Extreme Bearing thrust bearing ss316

Stainless Steel 316 RSBW 40 backstop clutch bearing with seal covers

HS seal protector

HS seal protector

Oilseal abrasive protector, keeps abrasives away from the seal

Seales Single roller bearing Type-E,
Equipped with HS seals, to keep coarse
contamination away from the PTFE seals

It looks to me the right idea to protect the CL seals with a hard polyamide covering because the PTFE is quite soft.
We have done this in another submerged case with great success . you can read it here in the story of the : Submerged in boiling water with hot ashes
However , the good results don’t have to be automatically even so good for your situation.
I can tell what I think is the best but if it will be goodenough…, That is a thing that you, and your customer, can criticize the best.
 
Also attached are some pictures of the hard polyamide seal protection ring.
HS Seal Protector , bearing pillowblock isolator, against coarse abrasive contamination
HS Pillow Block bearing isolator Seal Protector against coarse abrasive contamination
pillow-block-bearing-isolator-seal-protector-for-hars-envormental-in-shelfisch-mussels-industrie

HS Seal Protector is often be mounted in combination of a PTFE lip seal

While using the DS seal, the installation length increases

When the DS seal is required in a bearing unit with a continuous shaf (cover side), the built-in length is greater. Because space has to be made in the bearinghousing by using an SR spacer ring.

Bearing pillowblock labyrinth seals
Stainless steel Spacer ring to mount labyrinth bearing seals
Size V
20 8.5
25 8.5
30 8.5
35 8.5
40 8.5
45 11
50 11
55 11
60 11
65 13
70 13
75 13
80 18
85 18
90 20
100 20