Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71921 CD/HCP4AL

71921 CD/HCP4AL

Dimensions

d		105	mm
D		145	mm
B		20	mm
d₁		117.3	mm
d₂		117.3	mm
D₁		132.7	mm
b		2.3	mm
C₁		10.9	mm
C₂		3.9	mm
C₃		3.2	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		26.8	mm

Abutment dimensions

d_a	min.	111	mm
d_b	min.	111	mm
D_a	max.	139	mm
D_b	max.	141	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		120.6	mm

Calculation data

Basic dynamic load rating	C	61.8	kN
Basic static load rating	C₀	69.5	kN
Fatigue load limit	P_u	2.6	kN
Attainable speed for grease lubrication		10000	r/min
Attainable speed for oil-air lubrication		16000	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	27
Reference grease quantity	G_ref	11.1	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	230	N
Static axial stiffness, preload class A		122	N/µm
Preload class B	G_B	460	N
Static axial stiffness, preload class B		168	N/µm
Preload class C	G_C	920	N
Static axial stiffness, preload class C		239	N/µm
Preload class D	G_D	1840	N
Static axial stiffness, preload class D		350	N/µm
Calculation factors
Calculation factor	f	1.25
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	16.4

Mass

Mass bearing

0.7

Model Number: 71921 CD/HCP4AL
Inner Diameter：105mm Outer Diameter：145mm Width：20mm
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:forklift industry,SPA equipment,Cutting Machine,Gripper Swing,power source,Blood coagulation reagent,tooth filling,Safety protection,forming machine,aerial work equipment,wire industry
Similar models:71921 ACD/P4A S71921 ACD/P4A 71921 CD/P4AH1 71921 ACD/P4AL 71921 ACD/HCP4AH1 S71921 CD/HCP4A 71921 CD/HCP4A S71921 CD/P4A 71921 ACD/P4AH1 71921 CD/HCP4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71921CD/HCP4AL products，there is large inventory of SKF 71921 CD/HCP4AL Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71921 CD/HCP4AL Which SKF 71921CD/HCP4AL 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
23096 CAK/W33	480	700	165	Bearings, units and housings
NU 2317 ECML	85	180	60	Bearings, units and housings
NU 309 ECNP	45	100	25	Bearings, units and housings
PL 48	-	-	28.575	Bearings, units and housings
QJ 314 MA	70	150	35	Bearings, units and housings
S71926 ACD/P4A	130	180	24	Bearings, units and housings
SAFS 22236 TLC	180	-	-	Bearings, units and housings
SIL 40 ESX-2LS	40	-	28	Bearings, units and housings
SY 1.11/16 FM	42.863	-	-	Bearings, units and housings
W 61902 R-2Z	15	28	7	Bearings, units and housings
YSA 207-2FK + HA 2307	35	72	43	Bearings, units and housings
YSP 212 SB-2F	61.66	110	42.5	Bearings, units and housings

Purchase the SKF 71921 CD/HCP4AL Please fill in the following

Hot number： 19970 22316 EKJA/VA405 23026 CCK/W33 + AHX 3026 319181/HB2 7008 CD/P4AH 71922 CD/P4A BD-C 30/710 KM-OH 30/710 H FYT 1.1/4 TF/VA228 GEC 340 FBAS GEH 120 ESL-2LS KDMS 604-385/180 NU 30/600 ECMA/HA1 PBM 140160200 M1G1 W 00 W 61801 R-2ZS