Timken932CDDouble Cup Tapered Roller Bearing Race – 8.3750 in OD, 4.6250 in Width, Oil Holes and Groove, Case-Carburized Steel

Product Description

What this part is

Brand: Timken. Manufacturer Part Number: 932CD. Product type: double cup, the one-piece outer ring of a two-row tapered roller bearing. Cup Part Number: 932CD. Series: 935. Design Units: Imperial. Outside Diameter: 8.3750 in (212.725 mm). Overall Width: 4.6250 in (117.475 mm). Number Of Rows: 2. Item Weight: 34.17 kg (75.33 lb). Bearing Material: case-carburized alloy steel with ground raceways. Precision Class: RBEC 1 / P0, standard tolerance. Cup only.

Decoding the designation

932 — the base cup number in Timken’s 935 inch series, 8.3750 in outside diameter.

CD — double cup. One outer ring carrying two ground raceways, seating two cones in a TDO (tapered double outer) arrangement.

What these specs mean in practice

e Factor: 0.33. K Factor: 1.79. Y1 Factor: 2.07. Y2 Factor: 3.09. Geometry Factor (Cg): 0.115. K and e are the load factors that set the thrust-to-radial split for this raceway geometry, and Y1 and Y2 convert an applied thrust into an equivalent radial load in a life calculation. The wide spread between the two raceways gives the finished assembly moment capacity, so it holds shaft alignment under overhung load and takes thrust in both directions once both cones are in place.

Lubrication provision

Relubrication: oil holes and an annular groove in the outer ring. Lubricant: grease or oil. The groove distributes lubricant circumferentially around the outer ring and the radial holes carry it inward to the roller paths, which suits a circulating-oil, oil-mist or centralised grease supply on a large, slow-turning shaft.

Mounting data

Housing backing shoulder diameter, frontface (Da): 7.61 in (193.04 mm). Maximum housing fillet radius: 0.06 in (1.5 mm), the largest fillet in the housing bore that the cup corner clears. The cup seats in one housing bore and is located axially between the housing shoulder and the end cap.

Quantity and configuration

Unit Quantity: 1 Pc. One 932CD double cup. It runs with two cones. The Timken catalogue pairs this cup with the 936, 938, 941, 942 and 943 cones as TDO assemblies, several of which also take a matched X1S cone spacer.

Interchange guidance

932CD is an industry-standard inch tapered roller bearing cup number and is carried under the same digits by other makers, with NTN prefixing it 4T-. Timken 932D is a related double cup on the same 8.3750 in outside diameter with a different outer ring width. Timken 932 is the single cup on that diameter. Searchable forms of this designation: 932CD, 932-CD, 932 CD, 932 C D, 932CD cup.