DODGETPHU-S2-215STop-Angle Take-Up Bearing Unit, 2-15/16″ Bore, Double-Row Spherical Roller, Non-Expansion, Setscrew Collar

Product Description

What this part is

A top-angle take-up bearing unit for a 2-15/16 in (74.61 mm) shaft. The cast iron housing is shaped to slide in a Dodge top-angle take-up frame, and the insert is a double-row spherical roller bearing from the S-2000 family, equivalent to a 22215. The shaft is held by a 65° setscrew Springlok collar. This is a heavy-duty take-up cartridge, not a light ball unit: at this bore it carries 41,500 lb dynamic.

Decoding the designation

TPHU – top-angle take-up housing unit, designed to run in a top-angle take-up frameS2 – S-2000 series, Dodge’s double-row spherical roller platform215 – bore size code, 2-15/16 inS – trailing build code (see the note below)
There is no trailing E, so this is the non-expansion build. Like all S-2000 units it is field-convertible between expansion and non-expansion.

About the trailing “S” and the item number

Dodge publishes only two S-2000 seal codes: R for the TRIDENT triple-lip rubbing seal and L for the labyrinth metallic seal. The trailing “S” here is not defined in Dodge’s published S-2000 nomenclature. It does appear as a parallel option in cross-reference tables — for example WSTU-S2-203R alongside -203S, and -203RE alongside -203SE — which indicates a distinct seal or build variant whose meaning Dodge has not published. We are not going to guess at it. Check the unit nameplate and, if a specific seal is critical to your application, note that the sibling TPHU-S2-215R is the confirmed TRIDENT-seal version.

The item number 045292 does not appear in current Dodge published tables, which list 070818 for TPHU-S2-215R and 070836 for TPHU-S2-215RE. 045292 is a legacy Dodge number, not an error. Central Surplus lists legacy numbers deliberately, because that is often the number stamped on the part in a maintenance store or written in a decades-old bill of materials.

Published ratings and mounting data

Dynamic load rating (C): 41,500 lbStatic load rating (C₀): 53,000 lbMaximum speed: 2,040 rpm with labyrinth seal, 1,490 rpm with TRIDENT sealBore: 2-15/16 in (74.61 mm)Insert: 22215 double-row spherical rollerFrame compatibility: TP-40 and TPHU-140 top-angle take-up frames

What these specs mean in practice

A take-up unit’s job is to keep belt or chain tension while the shaft position moves, so the housing has to match the frame it slides in as precisely as the bore has to match the shaft. TPHU is the top-angle style; wide-slot equivalents run in CP-515 centre-pull frames instead and are a different housing entirely. Ordering the right bore into the wrong frame family is the classic take-up mistake.

The static rating of 53,000 lb exceeds the dynamic rating of 41,500 lb, which is normal and worth understanding: dynamic capacity is a fatigue-life figure for a rotating bearing, static capacity is the load the raceways can take at rest without permanent indentation. On a take-up that sits under belt tension through long idle periods, the static number is the one that protects you from brinelling.

Quantity and configuration

Two units in stock. A take-up frame normally needs a pair, one each side, so two units covers one complete take-up assembly. If you are rebuilding a single take-up, this is the exact quantity you want; if you are doing several, ask about availability before committing to a shutdown date.

Fitting notes

Set both units to the same position in their frames so the shaft stays square to the belt line — a take-up pulled unevenly tracks the belt off. Tighten the Springlok collar setscrews alternately and to spec. Pair one fixed and one expansion unit on a shaft that runs warm so thermal growth has somewhere to go; two fixed units on a heating shaft load each other axially and shorten life. Since S-2000 units convert in the field, you can decide that at installation.

Interchange guidance

Dodge mounted bearings came from Rexnord, passed through Baldor and ABB, and are now Dodge Industrial under RBC Bearings, which is why legacy and current numbers coexist for the same part. Search forms include TPHU-S2-215S, TPHUS2215S, TPHU S2 215S, item 045292, and the current siblings 070818 (-215R) and 070836 (-215RE). The S-2000 TPHU range covers 1-7/8 in through 4 in shafts, so adjacent bores exist in the same frame family.