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		PTB7005
Bore diameter	d	25 mm
Outside diameter	D	47 mm
Width	B	12 mm
Basic dynamic load rating	C	12.5 kN
Basic static load rating	C0	5.3 kN
Fatigue load limit	Pu	0.55 kN
Mass	≈m	0.07207 kg
Precision class		P4 — Class 4 (ISO 492:2023)
Sealing		Without — Not sealed
Cage		TVP — Polyamide cage
Minimum operating temperature	Tmin	-30 °C
Maximum operating temperature	Tmax	120 °C

Product characteristics6 parameters

Main Dimensions & Performance Data9 parameters

Main Dimensions & Performance Data
Parameter	Symbol	Value
Bore diameter	d	25 mm0.984 in
Outside diameter	D	47 mm1.85 in
Width	B	12 mm0.472 in
Basic dynamic load rating, radial	Cr	12,500 N2,810.252 lbf
Basic static load rating, radial	C0r	5,300 N1,191.547 lbf
Fatigue load limit, radial	Cur	550 N123.651 lbf
Limiting speed for grease lubrication	nG Grease	26,000 1/min
Limiting speed for oil lubrication	nG Oil	26,000 1/min
Mass	≈m	72.07 g2.542 oz

Mounting dimensions11 parameters

Mounting dimensions
Parameter	Symbol	Value
Diameter shaft shoulder	da	30 mm1.181 in
Diameter shaft shoulder clearance	da	h12
Shoulder diameter outer ring	Da	42 mm1.654 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
Minimum diameter injection pitch	Etk min	32.4 mm1.276 in
Maximum diameter injection pitch	Etk max	34 mm1.339 in
Minimum diameter injection pitch	Etk1 min	32.4 mm1.276 in
Maximum diameter injection pitch	Etk1 max	34 mm1.339 in
Distance between the apexes of the pressure cones	a	14.4 mm0.567 in

Dimensions3 parameters

Temperature range2 parameters

Temperature range
Parameter	Symbol	Value
Operating temperature min.	Tmin	-30 °C-22 °F
Operating temperature max.	Tmax	120 °C248 °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
Unsealed design		Yes

Manufacturer Identity7 parameters

Product Identity2 parameters

Product Identity
Parameter	Symbol	Value
Construction		Precision bearing for driven tools PTB70..-E, adjusted, in pairs or sets, contact angle α = 25°
Short Description		Spindle bearing

Additional information3 parameters

Technical Data25 parameters

Technical Data
Parameter	Symbol	Value
Bore Diameter (D)		25 mm
Outside Diameter (D)		47 mm
Width (B)		12 mm
Basic Dynamic Load Rating, Radial (Cr)		12,500 N
Basic Static Load Rating, Radial (C0R)		5,300 N
Operating Temperature Min. (Tmin)		-30 °C
Operating Temperature Max. (Tmax)		120 °C
Axial Rigidity Medium (Ca M)		114 N/µm
Diameter Shaft Shoulder (Da)		30 mm
Lift Off Force Medium (Kae M)		1,310 N
Limiting Speed For Oil Lubrication (Ng Oil)		26,000 1/min
Maximum Diameter Injection Pitch (Etk1 Ma)		34 mm
Maximum Diameter Injection Pitch (Etk Max)		34 mm
Minimum Diameter Injection Pitch (Etk1 Mi)		32.4 mm
Preload Force Medium (Fv M)		431 N
Shoulder Diameter Outer Ring (Da)		42 mm
Limiting Speed For Grease Lubrication (Ng Grea)		26,000 1/min
Minimum Diameter Injection Pitch (Etk Min)		32.4 mm
Fatigue Load Limit, Radial (Cur)		550 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)		14.4 mm