Available Sizes of 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 Standard 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 various cross-sectional sizes, ranging from 0.170″ to 0.450″ (4.32 to 11.43 mm) deep (as shown below), and a wide range of shaft sizes. To see other types and sizes of Kalsi Seals, visit our online seal catalog.

The second and third tables list available Composite High Temperature Kalsi Seals™, which have an FKM body and an FEPM dynamic surface. The fourth and fifth tables list 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 view the current rotary seal implementation guidelines (Kalsi Seals Handbook), 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.
• Additional seal sizes can be furnished, subject to a one-time tooling charge to help defray associated engineering, machining, and setup expenses.
• Purchase orders and quote requests for rotary seals should be sent to the attention of the Product & Sales Coordinator via e-mail, or by fax at 281-240-0255.

HNBR Standard Kalsi Seal™ Sizes

Nominal Inside Diameter for -10 and -11 HNBR Seals*		Seal Part Number*	Seal Radial Depth D (inches)	Seal Axial Width (inches)	Gland Depth R (inches)**	Gland Width (inches) +0.005″ -0.000″**
0.672″	17.07 mm	344-21-*	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	0.250
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	344-362-*	0.247 ±0.003 †	0.180 †	0.227	0.214
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 †	0.309	0.316
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	0.300
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
1.500″	38.10 mm	344-364-*	0.335 ±0.005	0.250	0.309	0.292
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
1.891″	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
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
2.165″	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
3.460″	87.88 mm	587-7-*	0.300 ±0.005	0.250	0.274	0.292
3.750″	95.25 mm	344-73-*	0.335 ±0.005	0.250	0.309	0.289
3.775″	95.9 mm	587-9-*	0.335 ±0.005	0.250	0.309	0.289
4.773″	121.24 mm	587-4-*	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
5.664″	143.86 mm	587-5-*	0.335 ±0.005	0.250	0.309	0.289
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
8.550″	217.17 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
14.000″	355.6 mm	381-31-*	0.415 ±0.007	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.

-30 FKM High Temperature Kalsi Seal™ Sizes, 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
0.984″	25.00 mm	344-362-30	0.247 ±0.003 †	0.180 †	0.227
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
1.500″	38.10 mm	344-364-30	0.335 ±0.005	0.250	0.309
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 Sizes, 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: June 8, 2023

Our production team is standing by to meet your rotary sealing needs.