Bearings, units and housings -- Roller bearings -- Spherical roller bearings -- Spherical roller bearings -- SKF BD-21312 EK-H 312

21312 EK + H 312

SKF Explorer

Dimensions

d₁		55	mm
D		130	mm
B		31	mm
d₂	≈	87.8	mm
d₃		80	mm
D₁	≈	115	mm
B₁		47	mm
B₄		13	mm
b		6	mm
K		3	mm
r_1,2	min.	2.1	mm

Abutment dimensions

d_a	max.	87	mm
d_b	min.	65	mm
D_a	max.	118	mm
B_a	min.	6	mm
r_a	max.	2	mm

Calculation data

Basic dynamic load rating	C	217	kN
Basic static load rating	C₀	240	kN
Fatigue load limit	P_u	26.5	kN
Reference speed		4800	r/min
Limiting speed		6300	r/min
Calculation factor	e	0.22
Calculation factor	Y₁	3
Calculation factor	Y₂	4.6
Calculation factor	Y₀	2.8

Mass

Mass bearing + sleeve

2.35

Model Number: BD-21312 EK-H 312
Inner Diameter：55mm Outer Diameter：130mm Width：31mm
Reference speed:6300 r/min Limiting speed:4800 r/min
Type：Bearings, units and housings Roller bearings Spherical roller bearings Spherical roller bearings
Details： Spherical roller bearings
Update date：2026-04-16
Application:noise reduction equipment,Machine tools,electrocardiograph,relay,pneumatic Pump,machine lathe,Warehouse Shelf Equipment,plastic rolling,medical treatment,Die,suction nozzle
Similar models:21312 E 21312 EK BD-21312 EK-H 312
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Model No.	Inner Diameter	Outer Diameter	Width	Type
130 VL R	117	-	-	Seals
21302	53.975	82.58	11.13	Seals
44x60x8 CRW1 V	44	60	8	Seals
6217/VA201	85	150	28	Bearings, units and housings
60620	153.9748	172	14	Seals
71956 ACD/HCP4A	280	380	46	Bearings, units and housings
C 4120 V/VE240	100	165	65	Bearings, units and housings
NNCL 4876 CV	380	480	100	Bearings, units and housings
NNU 4992 BK/SPW33	460	620	160	Bearings, units and housings
OKC 170	170		-
OKCX 230	230		-
RN-1.5x6.8 BF/G2	-	-	1.5	Bearings, units and housings

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