Standard Kalsi Seals

Standard Kalsi Seals are used in a wide variety of difficult rotary sealing applications for retaining lubricants and excluding contaminants. For optimum abrasion resistance, lubricant pressure or spring force is needed to provide the proper seal orientation in the gland. Additional seal sizes can be furnished, subject to a one-time tooling charge to help defray associated engineering, machining, and setup expenses.

The first table below identifies HNBR Standarad Kalsi Seals that are available from existing tooling. Many of the seals in the first table can also be provided in -30 FKM for improved chemical resistance. Standard Kalsi Seals are available in seven standard cross-sectional sizes, ranging from 0.145″ to 0.415″ (3.68 to 10.54 mm) deep (as shown below), and a wide range of shaft sizes.

The second and third tables list available Composite High Temperature Kalsi Seals, which have an FKM body and an FEPM dynamic surface. The fourth table lists available FKM High Temperature Kalsi Seals. These various High Temperature Kalsi Seals were developed for service in applications with moderate differential pressure. They have a standard lip width, and an improved geometry that was developed for higher temperature service.

  • To download the current rotary seal implementation guidelines (Kalsi Seals Handbook) in PDF format, click here.
  • To download a dxf file of Standard Kalsi Seal cross-sections for inclusion in assembly drawings, right click here and use the “Save Target As” command.
  • Seal purchase orders should be sent to the attention of the Product & Sales Coordinator via fax number (281-240-0255) or e-mail.

HNBR Standard Kalsi Seals

Nominal Inside Diameter for -10 and -11 materials* Seal Part Number* Seal Radial Depth D (inches)
Seal Axial Width (inches)
Gland Depth R (inches)**
Gland Width (inches) +0.005″ -0.000″**
0.394″ 10.00 mm 344-134-* 0.186 ±0.003 0.170 0.166 0.206
0.394″ 10.00 mm 344-303-* 0.225 ±0.003 0.170 0.205 0.202
0.568″ 14.42 mm 344-329-* 0.225 ±0.003 † 0.220 0.205 0.280
0.672″ 17.07 mm 344-21-* 0.186 ±0.003 0.170 0.166 0.206
0.709″ 18.00 mm 344-166-* 0.145 ±0.003 0.170 0.125 0.209
0.709″ 18.00 mm 344-125-* 0.186 ±0.003 0.170 0.166 0.206
0.787″ 20.00 mm 587-38-* 0.296 ±0.005† 0.195† 0.270
0.827″ 21.00 mm 344-156-* 0.145 ±0.003 0.170 0.125 0.209
0.827″ 21.00 mm 344-315-* 0.450 ±0.005 † 0.250 0.424 0.309
0.875″ 22.23 mm 344-140-* 0.170 ±0.003 † 0.170 † 0.150 0.215
0.984″ 25.00 mm 344-358-* 0.145 ±0.003 0.170 0.125 0.209
1.005″ 25.53 mm 344-19-* 0.145 ±0.003 0.170 0.125 0.209
1.102″ 28.00 mm 344-122-* 0.212 ±0.003 0.220 0.189 0.262
1.102″ 28.00 mm 587-16-* 0.335 ±0.005 0.260 † 0.308
1.188″ 30.18 mm 344-91-* 0.212 ±0.005 0.220 0.189 0.262
1.188″ 30.18 mm 344-120-* 0.270 ±0.005 0.220 0.244 0.262
1.250″ 31.75 mm 344-191-* 0.212 ±0.003 0.220 0.189 0.262
1.259″ 32.00 mm 344-220-* 0.335 ±0.005 0.250 0.309 0.302
1.271″ 32.28 mm 344-222-* 0.335 ±0.005 0.250 0.309 0.302
1.375″ 34.92 mm 344-63-* 0.212 ±0.005 0.220 0.189 0.262
1.375″ 34.92 mm 587-19-* 0.276 ±0.005 † 0.250 0.250
1.375″ 34.92 mm 344-249-* 0.280 ±0.005 0.220† 0.244 0.262
1.445″ 36.70 mm 344-95-* 0.212 ±0.005 0.220 0.189 0.262
1.494″ 37.95 mm 344-69-* 0.212 ±0.005 0.220 0.189 0.262
1.625″ 41.28 mm 344-150-* 0.212 ±0.005 0.220 0.189 0.262
1.750″ 44.45 mm 344-175-* 0.270 ±0.005 0.250 0.244 0.292
1.750″ 44.45 mm 344-131-* 0.335 ±0.005 0.250 0.309 0.289
1.781″ 45.24 mm 344-109-* 0.270 ±0.005 0.250 0.244 0.292
1.859″ 47.22 mm 344-36-* 0.270 ±0.005 0.220 0.244 0.262
1.891″ 48.03 mm 344-15-* 0.270 ±0.005 0.220 0.244 0.262
1.891″ 48.03 mm 344-85-* 0.212 ±0.005 0.220 0.189 0.262
1.969″ 50.00 mm 344-41-* 0.335 ±0.005 0.250 0.309 0.292
1.979″ 50.27 mm 344-45-* 0.270 ±0.005 0.250 0.244 0.292
2.000″ 50.80 mm 344-89-* 0.270 ±0.005 0.250 0.244 0.292
2.000″ 50.80 mm 344-87-* 0.335 ±0.005 0.250 0.309 0.289
2.047″ 52.00 mm 344-196-* 0.335 ±0.005 0.250 0.309 0.289
2.165″ 55.00 mm 344-193-* 0.335 ±0.005 0.250 0.309 0.289
2.165″ 55.00 mm 344-194-* 0.270 ±0.005 0.250 0.244 0.292
2.250″ 57.15 mm 344-61-* 0.270 ±0.005 0.250 0.244 0.292
2.362″ 60.00 mm 344-147-* 0.360±0.005 0.250 0.329 0.300
2.362″ 60.00 mm 344-327-* 0.335±0.005 0.250 0.309 0.289
2.502″ 63.55 mm 344-114-* 0.270 ±0.005 0.250 0.244 0.292
2.559″ 65.00 mm 344-171-* 0.270 ±0.005 0.250 0.244 0.292
2.598″ 66.00 mm 344-152-* 0.335 ±0.005 0.250 0.309 0.289
2.750″ 69.85 mm 587-12-* 0.335 ±0.005 0.250 0.309 0.289
3.000″ 76.20 mm 344-116-* 0.335 ±0.005 0.250 0.309 0.289
3.145″ 79.88 mm 344-59-* 0.270 ±0.005 0.250 0.244 0.292
3.250″ 82.55 mm 344-179-* 0.270 ±0.005 0.250 0.244 0.292
3.750″ 95.25 mm 344-73-* 0.335 ±0.005 0.250 0.309 0.289
5.118″ 130.00 mm 344-167-* 0.335 ±0.005 0.250 0.309 0.289
5.473″ 139.01 mm 344-57-* 0.270 ±0.005 0.220 0.244 0.262
5.500″ 139.70 mm 344-218-* 0.270 ±0.005 0.250 0.244 0.292
6.000″ 152.40 mm 344-178-* 0.270 ±0.005 0.250 0.244 0.292
6.695″ 170.00 mm 344-254-* 0.329 ±0.005 † 0.210 † 0.303 0.250
6.750″ 171.45 mm 587-10-* 0.335 ±0.005 0.250 0.309 0.289
8.000″ 203.20 mm 344-158-* 0.335 ±0.005 0.250 0.309 0.289
8.260″ 209.80 mm 344-186-* 0.327 ±0.005 † 0.210 † 0.300 0.250
8.575″ 217.80 mm 344-93-* 0.335 ±0.005 0.250 0.309 0.289
9.012″ 228.90 mm 344-209-* 0.329 ±0.005 † 0.210 † 0.303 0.250
10.500″ 266.70 mm 381-6-* 0.415 ±0.008 0.300 0.380 0.342
10.500″ 266.70 mm 381-35-* 0.415 ±0.008 0.300 0.380 0.342
13.928″ 353.77 mm 381-31-* 0.415 ±0.005 0.300 0.380 0.342
14.500″ 368.3 mm 483-1-* 0.445 ±0.007 0.300 0.415 0.342
18.525″† 470.54 mm 483-3-* 0.445 ±0.007 0.300 0.415 0.342

* The complete seal part number consists of the basic part number plus the material dash number. Actual diameter varies as a function of material selected. New tooling may be required for certain materials.
** For gland details, see Chapter D5 of the Kalsi Seals Handbook. Gland depth can sometimes be varied to achieve specific objectives; see handbook.
† Non-standard cross-sectional size.

-200 FKM/FEPM Composite High Temperature Kalsi Seal, Standard Lip Width

Nominal Inside Diameter Seal Part Number Seal Radial Depth D (inches)
Seal Axial Width (inches)
Gland Depth R (inches)**
0.787″ 20.00 mm 587-38-200 0.296 ±0.005 0.195 0.270
1.102″ 28.00 mm 587-16-200 0.335 ±0.005 0.260†† 0.309
1.375″ 34.93 mm 587-19-200 0.276 ±0.005 0.250 0.250
1.750″ 44.45 mm 344-175-200 0.270 ±0.005 0.250 0.244
1.750″ 44.45 mm 587-21-200 0.276 ±0.005 0.250 0.250
1.750″ 44.45 mm 344-131-200 0.335 ±0.005 0.250 0.309
1.969″ 50.00 mm 344-41-200 0.335 ±0.005 0.250 0.309
2.000″ 50.80 mm 344-87-200 0.335 ±0.005 0.250 0.309
2.750″ 69.85 mm 587-12-200 0.335 ±0.005 0.250 0.309
3.750″ 95.25 mm 587-9-200 0.335 ±0.005 0.250 0.309
4.750″ 120.65 mm 587-4-200 0.335 ±0.005 0.250 0.309
5.625″ 142.88 mm 587-5-200 0.335 ±0.005 0.250 0.309

** For gland details, see Chapter D5 of the Kalsi Seals Handbook. Gland depth can sometimes be varied to achieve specific objectives; see handbook.

-201 FKM/FEPM Composite High Temperature Kalsi Seal, Standard Lip Width

Nominal Inside Diameter Seal Part Number Seal Radial Depth D (inches)
Seal Axial Width (inches)
Gland Depth R (inches)**
0.787″ 20.00 mm 587-38-201 0.296 ±0.005 0.195 0.270

** For gland details, see Chapter D5 of the Kalsi Seals Handbook. Gland depth can sometimes be varied to achieve specific objectives; see handbook.

-30 FKM High Temperature Kalsi Seal, Standard Lip Width

Nominal Inside Diameter Seal Part Number Seal Radial Depth D (inches)
Seal Axial Width (inches)
Gland Depth R (inches)**
0.787″ 20.00 mm 587-38-30 0.296 ±0.005 0.195 0.270
1.102″ 28.00 mm 587-16-30 0.335 ±0.005 0.260†† 0.309
1.375″ 34.93 mm 587-19-30 0.276 ±0.005 0.250 0.250
1.750″ 44.45 mm 344-175-30 0.270 ±0.005 0.250 0.244
1.750″ 44.45 mm 587-21-30 0.276 ±0.005 0.250 0.250
1.750″ 44.45 mm 344-131-30 0.335 ±0.005 0.250 0.309
1.969″ 50.00 mm 344-41-30 0.335 ±0.005 0.250 0.309
2.000″ 50.80 mm 344-89-30 0.270 ±0.005 0.250 0.244
2.000″ 50.80 mm 344-87-30 0.335 ±0.005 0.250 0.309
2.559″ 65.00 mm 344-171-30 0.270 ±0.005 0.250 0.244
2.750″ 69.85 mm 587-12-30 0.335 ±0.005 0.250 0.309
3.750″ 95.25 mm 344-73-30 0.335 ±0.005 0.250 0.309
4.750″ 120.65 mm 587-4-30 0.335 ±0.005 0.250 0.309

** For gland details, see Chapter D5 of the Kalsi Seals Handbook. Gland depth can sometimes be varied to achieve specific objectives; see handbook.

-31 FKM High Temperature Kalsi Seal, Standard Lip Width

Nominal Inside Diameter Seal Part Number Seal Radial Depth D (inches)
Seal Axial Width (inches)
Gland Depth R (inches)**
1.102″ 28.00 mm 587-16-31 0.335 ±0.005 0.260† 0.308
1.750″ 44.45 mm 344-131-31 0.335 ±0.005 0.250 0.309
1.969″ 50.00 mm 344-41-31 0.335 ±0.005 0.250 0.309
2.750″ 69.85 mm 587-12-31 0.335 ±0.005 0.250 0.309
3.750″ 95.25 mm 344-73-31 0.335 ±0.005 0.250 0.309
6.750″ 171.45 mm 587-10-31 0.335 ±0.005 0.250 0.309

** For gland details, see Chapter D5 of the Kalsi Seals Handbook. Gland depth can sometimes be varied to achieve specific objectives; see handbook.
† Non-standard cross-sectional size.

Updated: July 15, 2016

Kalsi 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.