JM734449A/JM734410TimkenTapered Roller

Name: Timken JM734449A/JM734410 Tapered Roller Bearing
Brand: Timken
SKU: JM734449A/JM734410

JM734449A/JM734410 is a Timken tapered roller bearing, bore 170 mm, O.D. 240 mm, height 100.28 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly

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Bore d170mm

Outside dia. D240mm

Overall width T100.28mm

Dynamic Cr667kN

Weight13.14kg

Mean dia. dm205mm

Original catalogue drawing - Timken TRB Catalog, page 692

JM734449A/JM734410 Timken Tapered Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

Symbol	Dimension	mm	inch
d	Bore diameter	170	6.6929
D	Outside diameter	240	9.4488
T	Overall assembly width	100.278	3.948
C	Cup / outer-ring width	82.278	3.2393

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)	170.000
Bore d (in)	6.6929
Outside dia. D (mm)	240.000
Outside dia. D (in)	9.4488
Overall width T (mm)	100.278
Overall width T (in)	3.9479
Cup width C (mm)	82.278
Cup width C (in)	3.2393

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	150000
Basic dynamic load rating Cr (N)	667000
Dynamic rating C1 (N, ISO)	667000
Dynamic rating C1 (lbf, ISO)	150000
Radial rating C90 (N)	99300
Radial rating C90 (lbf)	22300
Thrust rating Ca90 (N)	74300
Thrust rating Ca90 (lbf)	16700
Factor e	0.44
Factor Y1	1.54
Factor Y2	2.30
Factor K	1.34

Weight

Weight (kg)	13.14

Mounting dimensions (fillets / shoulders)

Shaft shoulder db (mm)	185.0
Housing shoulder Da (mm)	232.0

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	166,750	102	3,386
6	111,167	392	13,083
8	83,375	1,024	34,133
10	66,700	2,154	71,814
15	44,467	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 667,000 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	Timken
Source catalogue	Timken Tapered Roller Bearing Catalog (2016)
Catalogue page	p.692 (dimensions)
Series type	TS

ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30234	Timken	Tapered Roller	170	310	52	680 kN	17.1
32034X	Timken	Tapered Roller	170	260	57	576 kN	10.52
32934	Timken	Tapered Roller	170	230	38	329 kN	4.4
86669/86100	Timken	Tapered Roller	170	254	46.04	498 kN	7.12
JHM534149/JHM534110	Timken	Tapered Roller	170	230	38	316 kN	4.3
JM734449/JM734410	Timken	Tapered Roller	170	240	44.5	401 kN	6.25
JP17049/JP17010	Timken	Tapered Roller	170	230	30	252 kN	3.44
M235149/M235113	Timken	Tapered Roller	170	254	46.04	513 kN	7.33

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