DodgeSplit Cast Iron Pillow Block Housing, SAF-XT 515 Series, 2-7/16 in or 2-1/2 in Shaft, 3-1/4 in Base to Bore Centreline, 9-1/2 in Bolt Centres, Two-Bolt Base — Housing and Seals Only, No Bearing or Adapter

Product Description

This is a housing only — what you still need to buy:
This listing is the cast iron pillow block housing, split cap and base, plus a bagged set of seals. It is not a mounted bearing unit. There is no bearing in it and no adapter sleeve with it. The photographs show the bore empty and machined bare.

To make a working bearing position the following are also required: a 22215K adapter-mounted spherical roller bearing (the K denotes the tapered 1:12 bore that the sleeve drives into), and an SNW-15 adapter sleeve in the shaft size — SNW-15 x 2-7/16 or SNW-15 x 2-1/2 — with its lock nut and lock washer.

The complete-unit equivalent is Dodge 041888, a SAF-515 x 2-7/16 TT: housing, bearing, adapter and seals in one part number.

What is included

One split cast iron pillow block housing, cap and base, with cap bolts and grease fitting fitted as photographed. One bagged Dodge seal set, part number 043542, marked for a 2-7/16 in shaft. Original Dodge / Reliance Electric carton and instruction sheet.

Not included: bearing, adapter sleeve, lock nut, lock washer, mounting bolts for the base, shims.

Decoding the designation

H — Housing. S — Split. The housing separates into cap and base so the bearing and adapter can be assembled onto the shaft in place, without sliding the shaft out of the machine. That is the reason split blocks exist and why they dominate long line-shaft, conveyor and fan installations. SFXT — Split Frame XT, identifying the SAF-XT series. The cap of this housing is cast SAF-XT 515. 515 — the SAF / SN housing series number. It is not a shaft size in sixteenths, which is the usual misreading. Series 515 is the housing envelope that takes the 22215K bearing and the SNW-15 adapter family, which is what puts it on a 2-7/16 in or 2-1/2 in shaft. The carton label confirms it: SIZE 2-7/16 – 2-1/2. There is no separate FXT element in Dodge nomenclature; that fragment is an artifact of the transposed string. On the numeric digit: the sibling part 042109 is catalogued H4S-SFXT-515, the same size housing in a different cap-bolt configuration, which suggests the digit tracks cap bolts. The housing as photographed has four cap bolts and a two-bolt base.

What these specs mean in practice

The base-to-bore centreline height of 3-1/4 in is the dimension that decides whether the housing will work at all in an existing installation. A housing with a different centre height leaves the shaft out of line with the coupling, sprocket or pulley at the other end. Together with the 9-1/2 in bolt centre-to-centre spacing, those two figures are what make the SAF-XT dimensionally interchangeable with legacy SAF pillow blocks — an old SAF housing can be replaced with the XT equivalent without touching the base plate or drilling new holes. That interchangeability is the point of the series.

The housing has no load rating of its own; any figure quoted belongs to the bearing that goes inside it. The position is rated on the 22215K, not on the casting. What the housing contributes is stiffness and alignment: a rigid cast iron block holds the bearing outer ring round under load, and a bore that stays round is what lets a spherical roller bearing actually accommodate the shaft misalignment it was designed to accommodate.

A 22215K has a tapered bore; the SNW adapter sleeve is driven up into it with a lock nut, which expands the inner ring onto a plain straight shaft and grips it by interference. A shouldered, stepped or precision-ground shaft is therefore not required — a length of plain shafting works. It also means the lock nut torque is what sets the bearing’s internal clearance.

Mounting data

Shaft size range: 2-7/16 in or 2-1/2 in (per carton label and SNW-15 adapter family). Housing series: SAF-XT 515. Base to bore centreline height: 3-1/4 in. Bolt centre to centre: 9-1/2 in. Overall length: 11-1/4 in. Overall width: 4.91 in. Overall height: 6.44 in. Base width: 3.13 in. Base bolt holes: 2. Cap bolts: 4 (as photographed). Material: cast iron, uncoated. Configuration: split, both ends open. Weight: 23.53 lb. UPC: 782475022441. The seal set physically included in this lot is Dodge 043542.

Brand lineage and interchange guidance

Dodge mechanical power transmission products originated in Mishawaka, Indiana. The line passed to Reliance Electric, then to Baldor Electric in 2007, to ABB in 2011, and to RBC Bearings in November 2021, where it now trades as Dodge Industrial. The carton on this unit carries the older Dodge / Reliance Electric / Master / Reeves branding, which is normal for the number and does not indicate a different part. 042106 remains a current catalogue item.

Search and cross-reference forms: 042106, H2S-SFXT-515, H2SSFXT515, H2S SFXT 515, HS2SFXT515, HS2S-FXT-515, SAF-XT 515, SAFXT515, SAF 515. Related numbers: 042109 (H4S-SFXT-515, same series, different cap-bolt configuration), 041888 (SAF-515 x 2-7/16 TT complete assembly), 22215K (bearing), SNW-15 x 2-7/16 and SNW-15 x 2-1/2 (adapter sleeves), 043542 (seal set included here).