Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71908 CD/HCP4A

71908 CD/HCP4A

Dimensions

d		40	mm
D		62	mm
B		12	mm
d₁		47.1	mm
d₂		47.1	mm
D₁		54.9	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		12.9	mm

Abutment dimensions

d_a	min.	43.2	mm
d_b	min.	43.2	mm
D_a	max.	58.8	mm
D_b	max.	60.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		48.7	mm

Calculation data

Basic dynamic load rating	C	12.4	kN
Basic static load rating	C₀	8.5	kN
Fatigue load limit	P_u	0.36	kN
Attainable speed for grease lubrication		28000	r/min
Attainable speed for oil-air lubrication		40000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	21
Reference grease quantity	G_ref	1.44	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	45	N
Static axial stiffness, preload class A		40	N/µm
Preload class B	G_B	90	N
Static axial stiffness, preload class B		54	N/µm
Preload class C	G_C	180	N
Static axial stiffness, preload class C		73	N/µm
Preload class D	G_D	360	N
Static axial stiffness, preload class D		103	N/µm
Calculation factors
Calculation factor	f	1.09
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	10.4

Mass

Mass bearing

0.1

Model Number: 71908 CD/HCP4A
Inner Diameter：40mm Outer Diameter：62mm Width：12mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Angular contact ball bearings Angular contact ball bearings, super-precision
Details： Angular contact ball bearings, super-precision
Update date：2025-12-09
Application:packaging machinery,organic raw materials,plastic rolling,Textile Industry Accessories and Accessories,shoe-making machinery,experimental equipment,Safety protection,motor,steam Hydraulic control element,ventilation equipment,electric pump
Similar models:S71908 ACE/P4A 71908 ACE/P4AH1 71908 CE/HCP4AH1 71908 ACE/HCP4A 71908 CE/HCP4A 71908 ACD/P4A S71908 ACD/HCP4A 71908 CD/HCP4A 71908 CE/HCP4AL S71908 CB/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71908CD/HCP4A products，there is large inventory of SKF 71908 CD/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71908 CD/HCP4A Which SKF 71908CD/HCP4A is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
145x180x12 HMS5 RG	145	180	12	Seals
17136	43.6626	66.62	12.7	Seals
BD-23968 CCK/W33-OH 3968 H	320	460	90	Bearings, units and housings
32226/DF	130	230	-	Bearings, units and housings
51318	90	155	50	Bearings, units and housings
6745	17.4752	28.55	6.35	Seals
NNC 4980 CV	400	540	140	Bearings, units and housings
PCMW 527802 M	52	78	-	Bearings, units and housings
S71924 ACB/HCP4A	120	165	22	Bearings, units and housings
SAFS 22518	80.9625	-	-	Bearings, units and housings
SYF 30 FM	30	-	-	Bearings, units and housings
W 619/7 R-2RS1	7	17	5	Bearings, units and housings

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Hot number： 32028 X 32220/DF 38x52x8 HMS5 RG 51217 607-2RSLTN9/HC5C3WTF1 61924 MA 71904 ACD/P4A FSAF 22615 x 2.1/2 T HA 216 NU 29/1180 ECMA/HA1 NJ 306 ECP NU 2334 ECML NUP 19/600 ECMA/HA1 PSMF 304030 A51 W 61808-2Z