K 811 Series and K 812 Series
K 811 Series and K 812 Series cylindrical roller thrust assemblies are roller and cage assemblies used in single direction cylindrical roller thrust bearing arrangements. Unlike complete 811 and 812 series bearing sets, K series assemblies contain the cylindrical rollers and cage only, and are typically matched with WS shaft washers, GS housing washers, or LS universal washers.
TFL supplies a wide range of metric K 811 and K 812 series assemblies, including popular models such as K 81102 TN, K 81106 TN, K 81110 TN, K 81206 TN, K 81210 TN, and K 81212 TN. For customers seeking SKF interchangeable thrust bearing components, TFL provides model matching, washer compatibility checking, and global delivery support.
K Series Roller and Cage Assemblies for Thrust Bearing Arrangements
K 811 and K 812 series cylindrical roller thrust assemblies are the rolling element and cage units used inside single direction thrust bearing arrangements. They contain the cylindrical rollers and cage only, making them suitable for customers who need to replace the rolling assembly or build a thrust bearing arrangement with separately selected washers.
Unlike complete 811 and 812 series cylindrical roller thrust bearings, K series assemblies do not include shaft washers or housing washers. This gives maintenance teams and OEM engineers more flexibility when the existing raceways are still usable, or when the application requires specific WS shaft washers, GS housing washers, or LS universal washers.
Washer Matching and Raceway Compatibility
Because K 811 and K 812 assemblies carry axial load through rolling contact, they must run against properly matched and hardened raceways. In most standard arrangements, the K assembly is paired with a WS shaft washer and a GS housing washer. In other designs, an LS universal washer may be used depending on the mounting space and application structure.
For reliable replacement, TFL checks the K assembly model together with the corresponding washer codes, raceway diameters, roller diameter, bore size, outside diameter, and installation conditions. This helps avoid common mismatch problems such as incorrect washer pairing, insufficient raceway hardness, or unstable axial load distribution.
Replacement Support for K 811 and K 812 Assemblies
K series assemblies are often requested when the roller and cage unit is worn, damaged, or missing while the washers or raceways can still be reused. TFL supports replacement sourcing for models such as K 81102 TN, K 81110 TN, K 81206 TN, and K 81210 TN, helping buyers confirm whether they need only the K assembly or a complete bearing set.
For SKF interchangeable K series thrust components, our team can review old markings, drawings, sample photos, and related washer numbers before shipment. This is especially useful for distributors, repair buyers, and OEM factories handling mixed maintenance orders where K assemblies, WS washers, GS washers, and LS washers must be correctly matched.
FREQUENTLY ASKED QUESTIONS
What is a K 811 or K 812 cylindrical roller thrust assembly?
It is the roller and cage assembly used in a cylindrical roller thrust bearing arrangement. It does not include the shaft washer or housing washer, so it must be matched with suitable WS, GS, or LS washers.
What is the difference between K 811 and K 812 series?
The K 811 series is usually used for more compact axial bearing arrangements, while the K 812 series is generally heavier-duty and often provides higher axial load capacity in comparable sizes.
Can K 811 and K 812 assemblies be used alone?
No. K series assemblies require hardened and ground raceways or matching washers. In most applications, they are used together with WS shaft washers and GS housing washers to form a complete thrust bearing set.
Can TFL provide SKF interchangeable K 811 and K 812 assemblies?
Yes. TFL can help match SKF interchangeable K 811 and K 812 series thrust assemblies and related washer components based on part number, dimensions, load rating, cage material, and application conditions.
Which K 811 and K 812 models are commonly requested?
Commonly requested models include K 81102 TN, K 81106 TN, K 81110 TN, K 81206 TN, K 81210 TN, K 81212 TN, K 81120 TN, and K 81220 TN.