X30210UM/Y30210UMTimkenTapered Roller

Name: Timken X30210UM/Y30210UM Tapered Roller Bearing
Brand: Timken
SKU: X30210UM/Y30210UM

X30210UM/Y30210UM is a Timken tapered roller bearing, bore 50 mm, O.D. 90 mm, height 50 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly

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Bore d50mm

Outside dia. D90mm

Overall width T50mm

Dynamic Cr150kN

Weight1.24kg

Mean dia. dm70mm

Original catalogue drawing - Timken TRB Catalog, page 674

X30210UM/Y30210UM 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	50	1.9685
D	Outside diameter	90	3.5433
T	Overall assembly width	50	1.9685
C	Cup / outer-ring width	40.5	1.5945

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)	50.000
Bore d (in)	1.9685
Outside dia. D (mm)	90.000
Outside dia. D (in)	3.5433
Overall width T (mm)	50.000
Overall width T (in)	1.9685
Cup width C (mm)	40.500
Cup width C (in)	1.5945

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	33600
Basic dynamic load rating Cr (N)	150000
Dynamic rating C1 (N, ISO)	150000
Dynamic rating C1 (lbf, ISO)	33600
Radial rating C90 (N)	22300
Radial rating C90 (lbf)	5010
Thrust rating Ca90 (N)	16000
Thrust rating Ca90 (lbf)	3600
Factor e	0.42
Factor Y1	1.61
Factor Y2	2.39
Factor K	1.39

Weight

Weight (kg)	1.24

Mounting dimensions (fillets / shoulders)

Shaft shoulder db (mm)	60.0
Housing shoulder Da (mm)	86.0

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	37,500	102	3,386
6	25,000	392	13,083
8	18,750	1,024	34,133
10	15,000	2,154	71,814
15	10,000	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 150,000 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.674 (dimensions)
Series type	TS

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

Same dimensions, same brand

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
365/363D	Timken	Tapered Roller	50	90	50.01	177 kN	1.21
366/363D	Timken	Tapered Roller	50	90	50.01	177 kN	1.2
NA366/363D	Timken	Tapered Roller	50	90	50.01	177 kN	1.18

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
30210	Timken	Tapered Roller	50	90	20	79.5 kN	0.54
30310	Timken	Tapered Roller	50	110	27	149 kN	1.25
31310	Timken	Tapered Roller	50	110	27	124 kN	1.21
32010X	Timken	Tapered Roller	50	80	20	69.8 kN	0.36
32210	Timken	Tapered Roller	50	90	23	99.8 kN	0.63
32310	Timken	Tapered Roller	50	110	40	187 kN	1.83
33010	Timken	Tapered Roller	50	80	24	80.6 kN	0.45
33110	Timken	Tapered Roller	50	85	26	96.7 kN	0.58

Request a quotation for X30210UM/Y30210UM

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