Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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Tapered roller bearing cup, 3.6250 in (92.075 mm) OD x 0.9063 in (23.020 mm) wide, case-carburized steel, inch series HM803112. Two cups per purchase.
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Tapered Roller Bearing Cup - 5.513 in OD, 0.926 in Width, Inch Series$37.26
Tapered Roller Bearing Cup — 6.7500 in OD, 1.5000 in Cup Width, Inch Series$48.16
Timken 56650 Taper Roller Bearing Cup 6-1/2" OD 1-1/16" W Single Row Imperial$32.29
Double Tapered Roller Bearing Cup — 4.0000 in (101.600 mm) OD, 2.2500 in (57.150 mm) Width$38.33| MFR / Brand | NTN |
|---|---|
| MPN | HM803112 |
| Model | 4THM803112 |
| Bearing Type | Tapered Roller Bearing Cup |
| OD | 3.6250 in (92.075 mm) |
| Width | 1.1563 in |
| Series | HM803100 |
|---|---|
| Material | Case Carburized Steel |
| Mpn Variants | 4T-HM803112, HM803112, 4THM803112 |
| Closure Type | Open |
| Item Weight | 0.395 kg (0.871 lb) |
| Number Of Rows | 1 |
| Snap Ring Included | No |
| Harmonization Code | 8482.20.00 |
| Cross Reference 1 | Timken HM803112 |
|---|---|
| Cross Reference 3 | Bower HM803112 |
NTN 4T-HM803112 is the outer ring (cup) of an inch-series tapered roller bearing in the HM803100 family. Cup only. Outside Diameter: 3.6250 in (92.075 mm). Cup Width: 0.9063 in (23.020 mm). Material: Case carburized steel. Item Weight: 0.395 kg (0.871 lb) per cup.
4T — NTN prefix for its case-hardened (carburized) tapered roller execution. The hard case over a tough core resists shock loading.
HM803112 — ABMA inch-series cup number in the HM803100 heavy-medium series. The same number identifies the cup across makers that follow the ABMA scheme.
The cup carries the outer raceway of the bearing and seats in the housing bore. Housing fit is set by the 92.075 mm outside diameter. Load ratings and speeds belong to a complete cone-and-cup assembly and are set by the mating cone.
Outer Ring Back Face Fillet Radius: 0.1300 in (3.300 mm).
Unit Quantity: 2 Pcs. Two single cups per purchase.
HM803112 is a standard ABMA cup number and interchanges directly with Timken HM803112 and Bower HM803112.
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