SKF 89432M Cylindrical roller thrust bearing (81XXX)

SKF 89432 M complete cylindrical roller thrust bearing — heavy-section 89400-series axial-load bearing for the highest-load-density thrust duty. Complete assembly = K 89432 M (roller-and-cage) + WS 89432 (shaft washer) + GS 89432 (housing washer). SKF also sells the three components separately under those individual designations, following the same convention as the 811xx and 812xx families. Single-direction axial-load design — install the shaft washer against the shaft flange or shoulder that transmits thrust; the housing washer against the fixed housing face. Verified dimensions and load ratings (SKF product data corroborated across germany-bearing.com, frdbearing.com and Schaeffler medias): bore d = 160 mm, outside diameter D = 320 mm, height H = 95 mm (complete assembly), dynamic load rating C = 1,430 kN, basic static load rating C0 = 6,400 kN, fatigue load limit Pu = 540 kN, mass approximately 42 kg. Reference speed 480 r/min (SKF thermal reference speed, oil-service basis) and limiting speed 950 r/min (mechanical ceiling). Grease-service maximum speed is typically 50-70 percent of the limiting figure for a bearing of this size; consult SKF for a specific application. M SUFFIX: machined solid brass cage, window-type (multiple sources verified). Machined brass gives higher temperature capability and higher-speed oil-service tolerance than the glass-fibre-reinforced PA66 polyamide TN cage (which is limited to ~120 C service). The often-quoted ~200 C temperature ceiling for brass-cage thrust bearings is a GENERAL industry rule of thumb, not an SKF-published value for the specific 89432 M — consult SKF product data for the specific service application. Positioning vs 811xx and 812xx families at similar bore: the 894xx series carries SUBSTANTIALLY larger rollers and MUCH greater section height, delivering roughly a 3-5x step in C and C0 vs an 811xx or 812xx at the same 160 mm bore. Choose 894xx when the axial-thrust duty exceeds what 812xx (medium section) can carry, or when the required L10h life at a given load calls for the larger dynamic-rating margin. Cross-reference to other bearing makers (89432 M is the DIN-standard core — dimensional interchange holds per ISO 104 boundary dimensions; load ratings vary +/- 10-30 percent by maker per each's ISO 281 a_ISO factor): INA / FAG 89432-M (same 160/320/95 mm boundary, machined brass cage TV equivalent to SKF M); NSK 89432M; NTN 89432; Koyo 89432. TIMKEN does NOT list this DIN core natively in its cylindrical roller thrust range — closest is a custom T-series bearing built to spec; verify direct alternative via Timken applications engineering before substituting. Full SKF 894 M range (verified live on SKF: 89412 TN, 89420 M, 89432 M, 89448 M; distributor listings imply continuous DIN-pitch coverage across the family): 89406 through 89448 in the standard DIN pitch — 89406, 89408, 89410, 89412 (typically TN), 89416, 89420 M, 89424, 89428, 89432 M (this product), 89436, 89440, 89444, 89448 M. Applications for the 89400 series (heavy-thrust duty where 811xx / 812xx section is insufficient): hydraulic-press ram base thrust bearing, mechanical-press punch thrust bearing, marine reduction-gear thrust bearing (large-vessel main-engine reduction gear), rolling-mill screwdown thrust bearing, extruder screw-thrust bearing (polymer / rubber compounding), large industrial gearbox thrust take-up, vertical-shaft heavy-machinery thrust. Lubrication (SKF general thrust-bearing guidance): NLGI 2 lithium-complex grease (e.g. SKF LGEP 2 or equivalent lithium-complex EP2 grease) for grease-service duty; ISO VG 68-150 mineral oil for oil-service duty, with higher viscosities preferred for slow, heavy-load applications. Specific SKF-recommended lubricant grade for 89432 M is application-dependent — verify against the operating temperature, speed, load and re-lubrication schedule for the specific installation. Related cBallast SKUs: K 89432 M (roller-and-cage assembly alone for compact between-hardened-surfaces installations), WS 89432 (shaft washer alone for rebuild), GS 89432 (housing washer alone for rebuild). See our companion 'SKF 81xxx Cylindrical Roller Thrust Bearing Reference' document for the full family context including the 89400 heavy-section series; note that document's per-row load-rating table for the 811xx family may need row-by-row verification against current SKF product pages for engineering-critical RFQs (see internal note). cBallast supplies the full SKF 89400 M range plus K / WS / GS component spares ex-EU stock. Request a quote by SKF designation (89432 M complete vs K 89432 M cage-only vs WS 89432 vs GS 89432), preferred cross-reference (FAG / NSK / NTN / Koyo), and application context (hydraulic press vs marine reduction gear vs rolling-mill screwdown — different services drive different lubricant and cage-material choices).

Type

Cylindrical roller thrust bearing (81xxx)

Designation

SKF 89432M

Bore d

160 mm

HS code

8482.20

Bore diameter

160 mm

Outside diameter

320 mm

Height

95 mm

Basic dynamic load rating

1430 kN

Basic static load rating

6400 kN

Reference speed

480 r/min

Limiting speed

950 r/min

Bearing part

Complete bearing

Axial load capability

Single-direction

Number of rows

2

Cage

Machined brass

Tolerance class

Normal

Material, bearing

Bearing steel

Coating

Without

Indicative carbon footprint for new product

155 kg CO2e

Product net weight

42 kg

UNSPSC code

31171505

Standard

SKF designation convention

Material

As declared by SKF designation suffix

Temperature Range

Per SKF product data

HS Code

8482.20

• FAG 89432
• NSK 89432
• NTN 89432
• Timken 89432
• Koyo 89432
• Equivalent: 89432 (FAG)
• Equivalent: 89432 (NSK)
• Equivalent: 89432 (NTN)
• Equivalent: 89432 (Timken)
• Equivalent: 89432 (Koyo)