Dodge 300-Series Mounted Ball Bearing

Name: Dodge 300-Series Mounted Ball Bearing – Datasheet & Quote
Brand: Dodge
SKU: 300-Series

A mounted ball bearing built for heavy loads at high speed

The Dodge 300-Series is a mounted ball bearing pillow block that uses larger rolling elements than the common 200-series units. Dodge positions it for air-handling, agricultural and similar duties with moderate-to-heavy loads at elevated speeds, where a mounted spherical or tapered roller bearing might add cost the application does not need. Compared with a mounted spherical roller bearing, the smaller contact area of ball rolling elements reduces friction and heat, which Dodge says helps extend lubrication life and cut maintenance. Bore sizes run from 1-7/16 to 3-15/16 inches, and the units arrive pre-assembled and pre-lubricated so they are shaft-ready out of the box.

The housing has a recessed design that keeps the set screws easy to reach, and the seal is a mechanically retained single-lip type intended to prevent seal blow-out and contamination. The set screws are angled at 65 degrees for radial and axial shaft holding power, and Dodge quotes static misalignment of plus or minus two degrees.

Technical specifications

Parameter	Specification
Manufacturer	Dodge Industrial, Inc., Simpsonville, South Carolina, USA (an RBC Bearings company)
Series	300-Series mounted ball bearing, pillow block (new in the Dodge catalogue, flyer BR1BL02-02.26)
Shaft mounting	Set screw, 65-degree set screw angle
Bore range	1-7/16 to 3-15/16 inches (series 307 to 320)
Housing	Recessed design; two-bolt pillow block; low backing height option available
Seal	Mechanically retained single-lip seal
Misalignment	Plus or minus two degrees static
Lubrication	Pre-lubricated; Intelli-Lube compatible
Condition monitoring	Housing pre-drilled and tapped for the OPTIFY Performance Sensor (temperature and vibration)
Origin	Manufactured in Rogersville, Tennessee, USA, ISO 9001:2015 facility

Dimensions and printed interchange tables

Standard two-bolt pillow block, set screw, listed by Dodge as a drop-in replacement for the part numbers shown in the last column (dimensions in inches, letters as in the flyer drawing):

Series	Bore (in)	Dodge part no.	Description	A	B	J	M	Bolt dia. (in)	D	F	Printed equivalent
307	1-7/16	123078	P2B-SC3-107	1.89	9.25	6.93	7.82	5/8	4.72	2.37	PU323
309	1-11/16	123079	P2B-SC3-111	2.24	10.25	7.81	8.70	5/8	5.62	2.87	PU327
310	1-15/16	123080	P2B-SC3-115	2.40	11.12	8.31	9.20	5/8	6.22	3.12	PU331
311	2-3/16	123081	P2B-SC3-203	2.60	12.62	9.82	10.68	3/4	6.81	3.50	PU335
312	2-7/16	123082	P2B-SC3-207	2.80	13.75	10.70	11.81	3/4	7.18	3.62	PU339
314	2-11/16	123083	P2B-SC3-211	3.07	14.63	11.13	12.50	7/8	7.94	4.00	PU343
315	2-15/16	123084	P2B-SC3-215	3.23	15.12	11.05	12.43	7/8	8.38	4.25	PU347
318	3-7/16	123085	P2B-SC3-307	3.78	16.12	12.31	13.44	1	10.06	5.12	PU355
320	3-15/16	123086	P2B-SC3-315	4.25	17.31	14.06	14.94	1	11.07	5.69	PU363

The low backing height two-bolt pillow block, listed by Dodge as a drop-in replacement for the eccentric collar type shown in the last column, is offered in series 307 to 315; four of its rows:

Series	Bore (in)	Dodge part no.	Description	A	B	J	M	Bolt dia. (in)	D	F	Printed equivalent
307	1-7/16	123087	P2B-SC3B-107	1.89	7.56	5.81	6.25	1/2	4.28	2.12	RAO1-7/16
309	1-11/16	123088	P2B-SC3B-111	2.24	9.43	7.19	7.83	5/8	5.25	2.62	RAO1-11/16
311	2-3/16	123090	P2B-SC3B-203	2.60	11.31	8.70	9.30	3/4	6.15	3.06	RAO2-3/16
315	2-15/16	123093	P2B-SC3B-215	3.23	15.12	11.62	12.38	7/8	8.06	4.12	RAO2-15/16

Dodge notes that the Link-Belt, Timken and Fafnir names belong to their respective owners, that these names are used only to identify products, and that Dodge Industrial is not affiliated with those companies.

Selection and what to confirm

Choose the 300-Series where speed and load both rise above what a 200-series unit handles but a spherical roller bearing is not required. Confirm the shaft size and tolerance, the bolt pattern of the existing base, whether a low backing height block fits the frame, and the expected operating temperature and speed. Dodge offers an interchange and grease calculator tool through its PT Wizard site for selection support.

Documents and quotation

The attached PDF is the Dodge flyer for the 300-Series mounted ball bearing. For related rolling bearings see the Timken 22216EJW33 spherical roller bearing or browse Electric Motors and Gear Units, where bearings and motor spares are listed. Send the shaft size, current part number or nameplate data, and the duty for a quotation.

Dodge is an American brand of mounted bearings and mechanical power transmission products, today part of RBC Bearings. Its range covers pillow blocks, torque-arm shaft-mount reducers and flexible and disc couplings for conveyors, fans, mills and other industrial machinery.

Mounted bearings and drives

Dodge publishes product flyers and catalogues for series such as the 300-Series mounted ball bearings, S-2000 spherical roller bearings and Torque-Arm II reducers. Each states sizes, mounting options and typical applications.

Couplings

Dodge couplings include the Sidewinder wrap coupling and the StratoLink disc coupling, each with its own documentation for selection and installation.