NA13687/13621DTimkenTapered Roller

Name: Timken NA13687/13621D Tapered Roller Bearing
Brand: Timken
SKU: NA13687/13621D

NA13687/13621D is a Timken tapered roller bearing, bore 38.1 mm, O.D. 69.01 mm, height 46.03 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly

Request a quote WhatsApp Email us Search the catalog

Bore d38.1mm

Outside dia. D69.01mm

Overall width T46.03mm

Dynamic Cr98.7kN

Weight0.67kg

Mean dia. dm53.6mm

Original catalogue drawing - Timken TRB Catalog, page 650

NA13687/13621D 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	38.1	1.5
D	Outside diameter	69.012	2.717
T	Overall assembly width	46.035	1.8124
C	Cup / outer-ring width	38.1	1.5
r	Chamfer (min)	0.8	0.0315

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)	38.100
Bore d (in)	1.5000
Outside dia. D (mm)	69.012
Outside dia. D (in)	2.7170
Overall width T (mm)	46.035
Overall width T (in)	1.8124
Cup width C (mm)	38.100
Cup width C (in)	1.5000

Load ratings & speeds

Basic dynamic load rating Cr (lbs)	22200
Basic dynamic load rating Cr (N)	98700
Dynamic rating C1 (N, ISO)	98700
Dynamic rating C1 (lbf, ISO)	22200
Radial rating C90 (N)	17400
Radial rating C90 (lbf)	3920
Thrust rating Ca90 (N)	12000
Thrust rating Ca90 (lbf)	2700
Factor e	0.40
Factor Y1	1.68
Factor Y2	2.50
Factor K	1.45

Weight

Weight (kg)	0.67

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)	2.0
Housing fillet r max (mm)	0.8
Shaft shoulder db (mm)	46.5
Housing shoulder Da (mm)	65.0

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	24,675	102	3,386
6	16,450	392	13,083
8	12,338	1,024	34,133
10	9,870	2,154	71,814
15	6,580	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 98,700 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.650 (dimensions)
Series type	TNA

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
13685/13621D	Timken	Tapered Roller	38.1	69.01	46.03	117 kN	0.66
13687/13621D	Timken	Tapered Roller	38.1	69.01	46.03	117 kN	0.66

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
13685/13620	Timken	Tapered Roller	38.1	69.01	19.05	67.2 kN	0.28
13685/13621	Timken	Tapered Roller	38.1	69.01	19.05	67.2 kN	0.28
13685/13621A	Timken	Tapered Roller	38.1	69.01	19.05	67.2 kN	0.27
13685/13621D	Timken	Tapered Roller	38.1	69.01	46.03	117 kN	0.66
13685/13624	Timken	Tapered Roller	38.1	69.97	19.05	67.2 kN	0.33
13685A/13620	Timken	Tapered Roller	38.1	69.01	19.05	67.2 kN	0.29
13685A/13621	Timken	Tapered Roller	38.1	69.01	19.05	67.2 kN	0.29
13686/13620	Timken	Tapered Roller	38.1	69.01	26.2	67.2 kN	0.35

Request a quotation for NA13687/13621D

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.

Online enquiry form richard@bearingsfit.com WhatsApp +86 156 2149 6516