51217NSKThrust

Name: NSK 51217 Thrust Bearing
Brand: NSK
SKU: 51217

51217 is a NSK thrust bearing, bore 85 mm, O.D. 125 mm, height 31 mm, dynamic rating 21,600 lbs. Dimensions, drawing, interchanges and price.

Request a quote WhatsApp Email us Search the catalog

Bore d85mm

Outside dia. D125mm

Overall width T31mm

Dynamic Cr21,600lbs

Static C0r59,300lbs

Limiting speed1,600rpm

Weight1.22kg

Cr / C0r0.36

Mean dia. dm105mm

Original catalogue drawing - NSK catalogue, page 145

51217 NSK Thrust 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	85	3.3465
D	Outside diameter	125	4.9213
T	Overall assembly width	31	1.2205

Notes

Thrust bearing ratings are axial values Ca / Coa; T is the overall height. 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)	85
Bore d (in)	3.3465
Outside dia. D (mm)	125
Outside dia. D (in)	4.9213
Overall width T (mm)	31
Overall width T (in)	1.2205

Load ratings & speeds

Basic dynamic axial rating Ca (lbs)	21600
Basic static axial rating Coa (lbs)	59300
Limiting speed - grease (rpm)	1,600
Limiting speed - oil (rpm)	2,400

Weight

Weight (kg)	1.22

Mounting dimensions (fillets / shoulders)

Chamfer r (in)	0.039
Shaft shoulder da min (in)	4.295
Housing shoulder Da (in)	3.979

Bearing life (ISO 281 basic rating life)

C / P	Equivalent load P (N)	L₁₀ (10⁶ rev)	L_10h at 500 rpm
4	24,020	102	3,386
6	16,014	392	13,083
8	12,010	1,024	34,133
10	9,608	2,154	71,814
15	6,405	8,323	277,449

Basic rating life per ISO 281: L₁₀ = (C/P)^10/3 with C = 96,082 N. Hours = L₁₀ x 10⁶ / (60n). Life-modification factors for lubrication, contamination and temperature (a_ISO) are not included.

Source & traceability

Brand	NSK
Source catalogue	NSK inch product catalogue
Catalogue page	p.147 (dimensions) / p.148 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

Designation	Brand	Type	d	D	B/T	Dyn. rating	kg
29317	NSK	Thrust	85	150	39	330 kN	2.7
29317E	NSK	Thrust	85	150	39	74,500 lbs	2.699
29417E	NSK	Thrust	85	180	58	142,000 lbs	6.532
29418	NSK	Thrust	85	190	60	695 kN	7.55
51117	NSK	Thrust	85	110	19	10,400 lbs	0.44
51317	NSK	Thrust	85	150	49	46,500 lbs	3.57
51417	NSK	Thrust	85	180	72	310 kN	8.72
51417X	NSK	Thrust	85	180	72	69,400 lbs	8.509

Request a quotation for 51217

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