LIEBHERR WORKING EQUIPMENT PIVOT PIN CASSETTE SEAL

Ask about product

Cassette-type sealing unit designed for heavy-duty pivot pin joints on Liebherr construction machinery working equipment — excavators, wheel loaders, dozers, material handlers, and mining equipment. Installed at boom, stick, bucket, and attachment linkage articulation points where the steel pin rotates within the bushing under cyclic operational loading.

Function: Retains lubricant (typically Liebherr-Spezialfett 9900 or equivalent) inside the pivot joint while preventing water ingress, dust, and abrasive contamination from job site, quarry, or demolition environments. The integrated cassette design features a compact dual-lip configuration with built-in retainer, installed as a single sealed unit for superior protection compared to classical radial seals.

Wear mechanisms: Elastomer hardening from UV and thermal cycling; lip cracking under repetitive load reversal; grease washout when central lubrication is neglected; pin galling and bushing scoring when seal integrity fails. Premature seal failure accelerates bushing and pin wear, creating joint play, noise, vibration, and loss of boom/stick positioning precision.

Service economics: Scheduled replacement during central lubrication system maintenance requires minimal labor (a few hours) and modest part cost. Field failure results in machine downtime, bushing and pin damage requiring replacement, and extended service outages.

Compatible machines:

• A974 B-697
• L550-1839
• L551-274
• L554-453
• L556-1410
• L564-462
• L566-1484
• L580-1464
• L584-788
• L586-1334
• L586-1761
• L586-1815
• L586-461
• P9150-1135
• P984-1052
• P984-319
• P984-991
• P995-627
• P996-602
• PR721C-240
• PR731CM-205
• PR741C-207
• PR752-324
• PR754-990
• PR764-688
• PR766-1421
• PR76605-1681
• PR7664F-1681
• PR776-1296
• R9150-1133
• R9150-1438
• R9150-1592
• R9150-1653
• R9150-1857
• R9150B-1133
• R9150B-1592
• R9150B-1657
• R9150B-1857
• R9150E-1134
• R9200-1625
• R9200-410
• R9200E-1409
• R926-1715
• R928-1715
• R930-1716
• R932 EW-590
• R932 HD-S-381
• R932 HD-S-571
• R932 HD-SL-365
• R932 HDS-571
• R932 HDSL-572
• R932 SL-572
• R934 HDS-647
• R934 HDSL-648
• R934 V-700
• R934-1550
• R936 K-LC-1780
• R936 K-LC-1828
• R936 K-NLC-1780
• R936 K-NLC-1828
• R936 K-SLC-1828
• R938-1650
• R942 BRA-531
• R942 HD-S-382
• R942 HD-S-573
• R942 HD-SL-366
• R942 HD-SL-574
• R942 HD-V-493
• R942 HDS-573
• R942 HDSL-574
• R942 HDV-493
• R942 LI-366
• R942 LI-382
• R942 SL-574
• R942-365
• R942-366
• R942-382
• R942-493
• R942-573
• R942-574
• R944 HDSL-651
• R944B HDSL-651
• R945-1866
• R950 VHHD-1467
• R950 VHHD-1788
• R952 HD-214
• R954 B-629
• R954 B-EW-632
• R954 B-HD-629
• R954 B-HDS-633
• R954 B-HDV-631
• R954 B-HDW-631
• R954 B-V-630
• R954 B-VHD-736
• R954 BV-HD-708
• R954 BVHHD-736
• R954 C HD-1661
• R954 C LCV-1615
• R954 C-976
• R954 C-HD-1128
• R954 C-HD-1590
• R954 C-HD-976
• R954 CSHD-1670
• R954 EW-632
• R954 HD-494
• R954 HD-554
• R954 HD-629
• R954 HD-EW-557
• R954 HD-S-562
• R954 HD-W-569
• R954 HDS-562
• R954 HDS-629
• R954 HDS-633
• R954 HDW-569
• R954 HDW-631
• R954 LBR-629
• R954 LBR-633
• R954 OBW-629
• R954 STAM-494
• R954 V-406
• R954 V-HD-695
• R954 V-HD-708
• R954 VH-HD-736
• R954-406
• R954-494
• R954-557
• R954-562
• R954-569
• R954-629
• R954B BVHHD-736
• R954B EW-632
• R954B HD-629
• R954B HDS-633
• R954B HDSL-633
• R954B HDW-631
• R954B HDW-632
• R954B V-630
• R954B V-HD-708
• R954B VHD-708
• R954B VHHD-736
• R954C HD-1128
• R956 EW-1728
• R956 HD-1476
• R956 HD-1728
• R956 LC-1476
• R956 LC-1728
• R956 LC-V-1476
• R956 LC-V-1728
• R956 LC-VW-1476
• R956 LC-VW-1728
• R956 S-HD-1476
• R956 S-HD-1728
• R956-1728
• R960 T-1638
• R960 VHHD-1465
• R960 VHHD-1787
• R962 HD-225
• R962 LC-133
• R964 B EW-679
• R964 B-610
• R964 B-HD-610
• R964 B-HD-625
• R964 B-HD-741
• R964 B-HD-948
• R964 B-SHD-774
• R964 BEW-905
• R964 BHD-741
• R964 BHDS-309
• R964 BHDSL-309
• R964 BHDSL-625
• R964 BHDSL-693
• R964 BHDSL-760
• R964 BHDSL-773
• R964 C SHD-1009
• R964 C-HD-1165
• R964 C-HD-1364
• R964 C-HD-1503
• R964 C-HD-1651
• R964 C-HD-448
• R964 CHD-1364
• R964 CHD-448
• R964 CHDSL-1008
• R964 CHDSL-1126
• R964 CSHD-1447
• R964 HD-580
• R964 HD-610
• R964 HD-656
• R964 HDEW-570
• R964 LBR-610
• R964-407
• R964B EW-989
• R964B HD-610
• R964B HD-741
• R964B HD-948
• R964B HDSL-760
• R964B HDSL-903
• R964B SHD-774
• R964B SHD-938
• R964C HD-1165
• R964C HD-448
• R966 HD-1783
• R972 HD-134
• R974 B HD-408
• R974 B-408
• R974 B-601
• R974 B-EW-796
• R974 B-HD-408
• R974 B-HD-737
• R974 B-HD-949
• R974 B-LI-737
• R974 B-SHD-436
• R974 BEW-608
• R974 BEW-914
• R974 BHD-949
• R974 BHDEW-529
• R974 BHDEW-915
• R974 BHDSL-451
• R974 BHDSL-601
• R974 BHDSL-737
• R974 BHDSL-742
• R974 BHDSL-949
• R974 BHDSL-988
• R974 BHR-951
• R974 BSHD-436
• R974 BSHD-929
• R974 BVHHD-500
• R974 BVHHD-795
• R974 BVHHD-937
• R974 C HD-1137
• R974 C HD-449
• R974 C SHD-1011
• R974 C SHD-1152
• R974 C-449
• R974 C-HD-1137
• R974 CHDSL-1010
• R974 CHDSL-1124
• R974 CSHD-1152
• R974 CVHHD-1057
• R974 HD-408
• R974 HD-585
• R974 HD-EW-609
• R974 HD-EW-751
• R974 HDEW-609
• R974 HDSL-601
• R974 HDSL-742
• R974 LI-242
• R974 LI-297
• R974 LIT-486
• R974 VH-HD-1057
• R974 VH-HD-937
• R974-242
• R974-297
• R974-408
• R974-486
• R974-601
• R974B EW-914
• R974B HD-408
• R974B HD-737
• R974B HD-949
• R974B HDEW-609
• R974B HDSL-451
• R974B HDSL-585
• R974B HDSL-601
• R974B HDSL-742
• R974B HDSL-913
• R974B HDSL-988
• R974B HR-951
• R974B LIT-408
• R974B VHHD-937
• R976 HD-1540
• R976 HD-1574
• R976 HD-1785
• R980 S-HD-1543
• R980 S-HD-1774
• R980 S-HD-1786
• R980 VHHD-1786
• R982-158
• R984-1012
• R984-243
• R984-409
• R984-487
• R984-528
• R984-657
• R984-738
• R984-759
• R984-767
• R984-922
• R984-977
• R984B-409
• R984C-409
• RL52-739
• RL54-1415
• RL56-1632
• RL563A-1632
• RL564F-1632

Components used in the working assembly of Liebherr excavators, loaders, bulldozers, and mining machines. The range includes bucket teeth, tooth wedges, tooth adapters, retainer pins securing teeth, boom pins, hydraulic cylinder pin bushings, spherical joint bearings, cutting edges, moldboards, side cutters, bucket teeth, GET parts adapters, ripper points, and attachment mounting pins. Industry synonyms: working assembly elements, boom and stick parts, GET parts (Ground Engaging Tools), excavator teeth, stick attachments, working parts, bucket elements.