Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications13 parameters

Core specifications
Parameter	Symbol	Value
Series		PTB7004
Bore diameter	d	20 mm
Outside diameter	D	42 mm
Width	B	12 mm
Basic dynamic load rating	C	9 kN
Basic static load rating	C0	3.4 kN
Fatigue load limit	Pu	0.365 kN
Mass	≈m	0.069 kg
Precision class		P4 — Class 4 (ISO 492:2023)
Cage		TVP — Polyamide cage
Lubricant		GA21 — Grease for super precision bearings, standard
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	80 °C

Product characteristics6 parameters

Product characteristics
Parameter	Symbol	Value
Preload class	M	Preload medium
Contact angle	E	Contact angle 25°
Tolerance class	P4	Class 4 (ISO 492:2023)
Cage	TVP	Polyamide cage
Arrangement bearing set	U	Single bearing
Lubricant	GA21	Grease for super precision bearings, standard

Main Dimensions & Performance Data8 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	20 mm0.787 in
Outside diameter	D	42 mm1.654 in
Width	B	12 mm0.472 in
Basic dynamic load rating, radial	Cr	9,000 N2,023.381 lbf
Basic static load rating, radial	C0r	3,400 N764.388 lbf
Fatigue load limit, radial	Cur	365 N82.059 lbf
Limiting speed for grease lubrication	nG Grease	30,000 1/min
Mass	≈m	0.069 kg0.152 lbs

Mounting dimensions7 parameters

Mounting dimensions
Parameter	Symbol	Value
Diameter shaft shoulder	da	25 mm0.984 in
Diameter shaft shoulder clearance	da	h12
Shoulder diameter outer ring	Da	37 mm1.457 in
Shoulder diameter outer ring clearance	Da	H12
Maximum recess radius	ra max	0.6 mm0.024 in
Maximum recess radius	ra1 max	0.3 mm0.012 in
Distance between the apexes of the pressure cones	a	13.2 mm0.52 in

Dimensions3 parameters

Temperature range2 parameters

Temperature range
Parameter	Symbol	Value
Operating temperature min.	Tmin	-30 °C-22 °F
Operating temperature max.	Tmax	80 °C176 °F

Capabilities & suitability4 parameters

Capabilities & suitability
Parameter	Symbol	Value
Radial load capacity		Yes
Axial load capacity in one direction		Yes
Suitable for grease lubrication		Yes
Sealedonbothsides		Yes

Manufacturer Identity6 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Precision bearing for Driven Tools PTB70..-E-2RSD, adjusted, in pairs or sets, contact angle α = 25°, lip seals on both sides, non-contact
Short Description		Spindle bearing

Additional information3 parameters

Technical Data20 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		20 mm
Outside Diameter (D)		42 mm
Width (B)		12 mm
Basic Dynamic Load Rating, Radial (Cr)		9,000 N
Basic Static Load Rating, Radial (C0R)		3,400 N
Operating Temperature Min. (Tmin)		-30 °C
Operating Temperature Max. (Tmax)		80 °C
Axial Rigidity Medium (Ca M)		87 N/µm
Diameter Shaft Shoulder (Da)		25 mm
Lift Off Force Medium (Kae M)		935 N
Preload Force Medium (Fv M)		307 N
Shoulder Diameter Outer Ring (Da)		37 mm
Limiting Speed For Grease Lubrication (Ng Grea)		30,000 1/min
Fatigue Load Limit, Radial (Cur)		365 N
Minimum Chamfer Dimension (Rmin)		0.6 mm
Maximum Fillet Radius (Ra Max)		0.6 mm
Maximum Recess Radius (Ra1 Max)		0.3 mm
Minimum Chamfer Dimension (R1 Min)		0.6 mm
Contact Angle (Α)		25 °
Distance Between The Apexes Of The Pressure Cones (A)		13.2 mm