Bearings, units and housings -- Super-precision bearings -- Double direction angular contact thrust ball bearings -- Angular contact thrust ball bearings, double direction, super-precision -- SKF BTM 85 BTN9/P4CDB

BTM 85 BTN9/P4CDB

Dimensions

d		85	mm
D		130	mm
H		40.5	mm
d₁		105.8	mm
D₁		118.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm

Abutment dimensions

d_a	min.	91	mm
D_a	max.	126	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		102.9	mm

Calculation data

Basic dynamic load rating	C	40	kN
Basic static load rating	C₀	88	kN
Fatigue load limit	P_u	3.6	kN
Attainable speed for grease lubrication		6400	r/min
Attainable speed for oil-air lubrication		8300	r/min
Preload class A		400	N
Preload class B		1200	N
Static axial stiffnes for preload A		435	N/µm
Static axial stiffnes for preload B		656	N/µm
Reference grease quantity	G_ref	16.8	cm³

Notes

Speed values are applicable to bearings with light preload (suffix DBA). For bearings with a heavy preload (suffix DBB), attainable speeds are about 75% of the quoted values.

Mass

Mass bearing

1.85

Model Number: BTM 85 BTN9/P4CDB
Inner Diameter：85mm Outer Diameter：130mm Width：40.5mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Double direction angular contact thrust ball bearings Angular contact thrust ball bearings, double direction, super-precision
Details： Angular contact thrust ball bearings, double direction, super-precision
Update date：2026-07-22
Application:squeeze machine etc,wheel lathe,ventilator anesthesia machine etc,economic mold,Forklift industry,powder metallurgy,hydraulic cylinder,fabric products,metal mold,sheet industry,ventilation heating equipment
Similar models:OH 31/850 HE NNU 41/850 K30M/W33 PSMF 708560 A51 BT2B 332685/HA1 BD-C 30/850 KMB-AOH 30/850 718/850 AMB HME 30/850 P 85 R-40 WF 67985/67920 IR 85x100x63
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Model No. Inner Diameter Outer Diameter Width Type

248/800 CAK30MA/W20
71968 ACDMA/HCP4A
7218 BECBY
GEC 340 TXA-2RS
HK 4518 RS

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Hot number： 470586 61904-2RS1 91337 BT1B 332900 BTM 140 BM/P4CDB BTW 140 CM/SP GEH 10 C HE 3136 NU 212 ECML NUP 306 ECP OKBS 60 PSM 708060 A51 SAF 22540 x 7.1/8 SAFS 22540 TLC SNW 17x3

Model No.	Inner Diameter	Outer Diameter	Width	Type
248/800 CAK30MA/W20
71968 ACDMA/HCP4A
7218 BECBY
GEC 340 TXA-2RS
HK 4518 RS